Goldfish - Goldfish Basic Care Guide


In this article we will teach you and clear any doubts about the goldfish aquarium. This magnificent fish It's one of the most common in the world of the aquarium, I can assure that 85% of the people who have fish tanks or aquariums have the goldfish fish.

That is why we will explain to you in what way and in what way we will prepare a ideal aquarium for goldfish.

Index of contents

Aquarium size for goldish

He aquarium size it matters a lot in fish, the bigger the better, for the simple reason that they will have more space to move and of course so that you can condition it to its habitat.

It should be about 40 -50 liters per copy, but if you want to have 4 or 5 goldish, an aquarium of 100-110 liters will be perfect.

That depends on how many goldfish you want in your aquarium or if you also want a community aquarium, that is, with more than one class of fish.

  • 1 copy
  • 40 liters
  • 50 cm wide x 40 cm long x 30 cm deep

What objects or rocks can we put in the aquarium

In the second section of the aquarium decoration we will write about the objects or rocks that we can introduce into the aquarium. They are also not necessary put rocks, stones and objects because we are taking away space.

Once we have the plants and the gravel placed, we will add a couple more things so that our goldfish can benefit.

It may be advisable to introduce some stone or object to provide shade when there is a lot of light during the day or to have a place in the most intimate aquarium.

To think that it depends on the aquarium you could put objects or not, since we take away space and we will complicate your movements in the aquarium.

Type of stones or objects in the aquarium

If we decide to use these decorations in the aquarium, it is recommended that nor be pointed and that do not harm our fish.

The goldfish They have very delicate fins apart from very thin ones and could be damaged by simply rubbing the decorations that we put in the goldfish aquarium.

Ideas to decorate a fish aquarium

As we have already said the aquarium decoration It is very important, since we accommodate our fish to their habit and this will make them feel comfortable and happy.

For this we leave you this super article that will bring you many ideas to decorate a fish aquarium. Following these simple steps, you will prepare the aquarium in a few minutes and see how your fish will appreciate it.

Here is a video of how to decorate an aquarium to make it easier for you and have some more ideas.

It is important that before preparing any aquarium and even buying any fish, you should inform yourself a little about the fish you want to have, such asThe twater temperature, food, compatibility with other fish, in the natural habit where they liveetc.

Goldfish or goldfish

One of the most common fish in the aquarium hobby, are the goldfish or goldfish, belong to the family Cyprinidae and they are native to East Asia.

Goldfish or goldfish

They are related to carp, but they are not equal to it, and they were domesticated for the first time from fish consumed in China more than 1,000 years ago. If you want to have more information about fish You can take a look at our category dedicated to our aquatic friends.

He goldfish, goldfish, Golden carp or golden carp are distinguished from koi tents Y common due to the absence of chins or "whiskers" at the corners of their mouths.

Through selective breeding, many varieties of goldfish are currently available, and when properly cared for, goldfish can live more than 20 years in captivity.

Golden Fish Natural Habitat

The goldfish are cold freshwater fish which are spread throughout nature and can be found in rivers, streams, lakes, ponds, reservoirs and practically in all the freshwater habitats of the planet, from temperate to tropical environments.

Goldfish have also been introduced in many parts of the world to control mosquito populations.

Types of goldfish

As a result of selective breeding, there are many different types of goldfish available today. All varieties are of the species Carassius Auratus.

Types of Goldfish

There are many types of goldfish, the common goldfish, Kite, Shubunkin, Oranda, Ryukin, Lion's Head, Telescope... to name a few.

Most goldfish are classified into one of two categories: regular or fancy. Regular fish are the kites, common Y Shubunkins. There are many more varieties of goldfish fancy.

If you can choose, it is recommended to choose the common goldfish because the characteristics of fancy fish provide problems in the internal organs as a result of their deformities.

However, if you already have some other type of goldfish, then you can take advantage that they do not grow as much as the common ones, so they do not need such a large aquarium when they are adults.

When you choose several goldfish, do not make a mixture of varieties with the common ones, since these will compete and surpass the other varieties in terms of food.

The differences between the common Carassius Auratus and the other varieties, is that the common ones are generally larger, faster, more active, need larger tanks, and are generally healthier.

Goldfish in captivity

The common goldfish, kites Y shubunkins They are excellent outdoor pond fish and are known to survive relatively cold winters.

The golden fish fancy, like orandas, ryukins and others, they can also be kept in outdoor ponds, but they are more vulnerable to predators and must be protected during winter in harsh climates.

In an aquarium, goldfish need minimum conditions that we will now see in more detail.

Choose your new golden carpín

One of the funniest parts of goldfish fish farming is getting new fish. But you have to keep in mind that it's not just about choosing a fish that you like, but it's healthy.

It is best to start with the best possible foot by buying a goldfish that is obviously not sick. If you have already bought it or have your goldfish, then you can skip this step and move on to the next point.

If you are going to buy it at your local pet store, you will have to look for fish that meet the following criteria:

    Swim actively and normally, without flotation or sinking problems. He looks cheerful and constantly moving, trying to find something to eat. It has no severe genetic defects. It is not in the same tank with sick or dead fish. You are not living in dirty water conditions that could lead to an infection. It shows no obvious signs of disease: fins that look bloody, white spots, red marks, etc.

But there is something else to watch out for ...

The type of goldfish you buy can make a big difference in the size of the tank you will need to grow to its full potential.

The golden fish of thin body like the Common, Kite Y Shubunkin They are small when they are young, but they can reach around 30 cm. That is why they are normally kept in ponds.

So if you have little space, a goldfish fancy It is probably the best for you. Goldfish fancy They are those that have two tails and a shorter body, and do not become so large, so they do not require so much space.

Once you've chosen your new friend with fins, it's time to take it home and put it in quarantine.


Regardless of where you bought the fish, you should keep them in quarantine. Quarantine is when you put the fish in a separate tank for a while before putting them in the main tank.

Quarantine for your goldfish

Two reasons to keep your new friends in quarantine:

    Quarantine gives the new fish a period of time to "rest" in a separate area before being introduced with your other fish. If you don't have any other fish, you don't have to do it in a separate tank.

The immune system will be very low right now, which makes them prone to disease. Using a quarantine aquarium, we will prevent them from being affected by the fish that are already there, while the new ones are stressed after the transfer. Quarantine allows you to treat all common Goldfish diseases that your fish may have, thus helping to prevent them from getting sick later. If your provider has already quarantined your fish completely, then you don't have to treat all diseases.

This is a sad reality:

Almost all goldfish fish in pet stores are already sick or on the verge of disease.

Pet stores cannot afford to quarantine each shipment of fish for weeks and treat them for the large number of diseases they can carry before they are put up for sale.

They may look good at the time of purchase, but they have gone through a long journey and are very stressed when they reach their final destination. By the time they arrive home, they are almost exhausted and harbor a large number of pathogens invisible to the naked eye.

These pathogens may not cause any problems at first, but as they multiply, the fish end up succumbing.

That is why it is so common to hear: «My goldfish always end up dying».

To recap, if you buy your fish at an animal store, you will need to treat your new fish yourself. And if you already have fish, you will need a separate tank to do this, so that your new fish do not contaminate others.

How to set up your first golden carp aquarium

The way you mount your aquarium will have a huge impact on your success as a goldfish fish breeder.

How to set up your first goldfish aquarium

If you are wondering if you can use the typical ball-shaped fishbowl, the answer is NO.

Goldfish should never be placed in small aquariums or any other unfiltered container. In addition to having a relatively high demand for oxygen, fish waste can be harmful if they are allowed to accumulate.

Y our advice is to take a look at our beginner aquarium guide, with which you will quickly understand why you should not use this type of fish tanks.

The common goldfish They are really one of the largest species and can grow up to 45 cm in length.

A good premise would be to try to choose the largest tank you can afford. He thinks that a larger tank equals healthier fish, and healthier fish equals a happier aquarist.

So how big does the aquarium have to be?

That will depend on the goldfish and how many you want to have in your fishbowl. We have already seen that there are two main types of goldfish, the common and the fancy.

The varieties of Common goldfish fish grow so much that they need 150 liters for the first fish, 75 for each additional.

Yes, although it seems hard to believe, they start so small and end so big.

Now the Golden fancy fish can reach 15 to 20 cm, so 35 to 70 liters per fish is enough. Their size makes them much more suitable for indoor aquariums.

And where do I put the tank?

On the other hand, you will have to choose where to place the aquarium, and it is important to consider all aspects.

First, is there air conditioning or heat sources nearby? Do not place the aquarium in a place where temperatures change sharply.

You should also keep your fish tank away from the windows, since the sunlight that seeps into the aquarium can cause algal growth if there is too much light, in addition to the windows usually have drafts.

If you have no choice but to place your tank where the sun is shining, use a cover that provides shade to reduce the amount of ambient sunlight.

If you have small children and / or pets, especially cats, look for a place that is out of reach.

Substrate, plants and decoration

This part is a bit more personal, because Each aquarist has his own tastes.

Some are happy with a "sunken pirate ship" and some fake plants, and others prefer a aquascaping of natural plants with wood and rocks.

At the bottom of the tank, we have the substrate. Pea-sized gravel is not a good option because goldfish naturally sift the substrate in their natural habitat and can drown with it.

Because we cannot use pea-sized gravel, we have two more options: specialized aquarium sand or large river rocks, both with their own pros and cons, but there is no risk that goldfish will suffocate.

Then we have the aquarium plants. When choosing natural plants, remember that goldfish naturally uproot plants, so you will have to choose resistant and / or fast-growing plants, or your plants will last a sigh.

When you buy your plants, it is recommended to quarantine them in an empty bottle for 1-2 weeks, even if they are sold as free of pests and diseases. If you have no experience with natural plants, we recommend our aquarium plant guide for beginners.

If you don't want live plants, another option is fake plants. False plants are good because they do not require maintenance except to clean the algae occasionally. But nevertheless, fake plants lack one of the best qualities of living plants: they do not clean or purify water.

Once you have your plants, natural or not, you can choose some decorations so that the goldfish have some shelter. The normal plastic ones are fantastic because they provide hiding place for your goldfish and do not change the pH of the water as wood does.

When you are choosing decorations, do not choose any with sharp edges, or that are irregular because your goldfish could get hurt with them. Remember, goldfish will always feel more comfortable and less stressed, which makes them less prone to disease, in a natural-looking environment.

And what else do I need?

But you will need more accessories than a tank to have a happy goldfish ...

    The aquarium water filters They provide a place for beneficial bacteria to grow that keep water quality in good shape for longer.

Beneficial bacteria are those that help keep water healthy. However, you must make water changes even if you have a filter. The filter should be slightly oversized to treat a high production of beef> For water changes, you will need a aquarium siphon. The type of siphon that connects to the sink is> An aquarium heater like the one you can see here to maintain a constant temperature, preventing alterations that can stress the fish. Especially recommended for fancy goldfish. A led aquarium light It will keep your fish and lush plants, while also allowing you to enjoy its contemplation.

Prepare the aquarium water

Water is the medium in which your golden tents will live, and it needs some conditioning so that it is in the right conditions that our friends need.

When it comes to providing water for the freshwater aquarium, tap water must be treated with the appropriate conditioners.

It is important that Never put untreated tap water in your aquarium, as this water brings chemical components that can kill your fish.

Add the appropriate water conditioners

Tap water contains chlorine, chloromins and other heavy metals and contaminants that will burn your fish and kill them. These components must be removed using a water conditioner.

Many recommend Seachem prime because it also reduces the toxicity of ammonia and nitrite for 48 hours, two parameters that are very common in new aquariums.

But even once you add your water conditioner, there is still something else you need to know ... The aquarium is not ready to add your new goldfish.

At this point, many people wait 20 minutes or 24 hours, depending on what the pet store employee has told them, and then add their goldfish.

Who wants to wait, right?

But in a week or so, the fish will be seriously ill, even dead.

This is because the tank has not been cycled first... and also not enough water changes were made to compensate for the lack of an established filter.

Goldfish produce waste that quickly becomes toxic to them. Only two things can be done to eliminate them: water changes or have a good colony of friendly bacteria.

Beneficial bacteria can help convert these wastes into non-toxic forms through a process called the Cycle of nitrogen.

Aquarium cycling

The process called aquarium cycling it is based on the nitrogen cycle and It has to be done before adding any fish to form a colony of beneficial bacteria.

If you already have the fish, it is too late to go through this process.

You will have to make very frequent water changes and add a bacteria culture initiator to accelerate the process, at least every two days for a few weeks until the colony is established in the filter.

If you do not have the fish already, you will have to cycle your aquarium, and in this article we explain how to cycle an aquarium step by step, so you don't miss a single detail.

But keep in mind that an established filter will never do ALL the work for you, will help you reduce it.

Now that you know how to make your aquarium water safe for your new pet, it's time to add the fish.

Acclimatize the goldfish to the aquarium

Now that you have your beautiful new tank ready, let's see how to introduce the goldfish in the tank.

You have to acclimatize the goldfish to the fishbowl

The acclimatization method that we are going to deal with here is the flotation acclimatization method.

    Float the bag in which the fish come in the water for 20 minutes to acclimatize the temperature. Open the top of the bag, without letting water in. Every 5 minutes, add approximately a little water from the aquarium to the bag. Repeat this for 30 minutes. When time has passed, with clean hands or a net, gently collect the fish and pass them to the aquarium. But try not to pour the water from the bag into the tank.

New fish may be a little scared for a while, and it is usually common for them to hide in the bottom until they adapt to their new environment.

If your fish have been shipped recently, you better not feed them for 24 hours. Once you start feeding them, do so in moderation to avoid causing water quality problems.

There is another method of acclimatization that consists of dripping water from the tank, and it is better for fish than the method of acclimatization by flotation. But it requires a way to slowly drip the water from the tank into the new water. We will leave it for another item.

How to properly feed the goldfish

Feeding your goldfish well is a very important aspect of fish care.

First, obviously goldfish need food at regular intervals to survive.

In nature, the golden carpines They are omnivorous, they feed on aquatic plants, fish eggs, insect larvae, crustaceans and even other smaller fish.

As pets, goldfish remain omnivorous, but the menu changes slightly.

But the most important thing is that the amount of food they consume directly affects the quality of the water and therefore the fish themselves.

A healthy diet equals healthy fish.

Overfeeding is a serious problem that ends up causing the death of many goldfish. And this is not easy because fish love to eat.

What can goldfish eat?

All fish feed is not the same, and the food that is manufactured specifically for tropical fish, for example, will have different components than the specific food for goldfish.

Goldfish food contains less protein and more carbohydrates than other fish foods. For this, you should not feed a Golden carp A food for betas.

The Colorful fish they will consume these foods for betas, but they will not have the nutrients they need. In addition, it is not recommended to feed a goldfish fish with human food, such as bread, cookies, crumbs, rice or potatoes.

It is advisable to use fish food formulated specifically for goldfish. However, some foods for goldfish are better than others.

Flakes or flakes

For example, commercial flakes, as soon as they reach the water, the scales begin to leach their ingredients, which can lead to water quality problems.

The fish also end up eating a lot of air when eating them. Goldfish feed naturally in the bottom, and can swallow air when they feed on the surface, causing them to lose their balance and float backwards.

To avoid this, soak food in flakes briefly before feeding and avoid using floating granules.

Pellets provide all the nutrients that goldfish need. The best ones have a lot of protein, fat and very little fiber. The type of sinking pellets are ideal.

Make sure your goldfish is large enough to swallow the pellets.

And keep in mind that the flakes begin to lose nutritional value as soon as you open the container, while the pellets maintain their nutritional value much better.

Water changes to have a healthy fish

This is because the biological filter converts toxins in water into a somewhat less harmful substance (nitrates), but you can't totally get rid of that toxic substance.

That substance will accumulate until it begins to harm your goldfish.

The solution? Regularly replace a percentage of tank water with clean new water.

The two most common mistakes that people make when making water changes are: not using dechlorinated water at the correct temperature and removing the golden fish from the aquarium to make a 100% water change.

To make the water changes, get a aquarium siphon to draw water from the aquarium. Now, exactly how much and how often it depends on several factors: the population density of your aquarium, the amount of food you provide to your fish and the results of the water tests.

Approximately we can estimate 30-40% of the aquarium water, while keeping the goldfish in the aquarium, because they will be stressed much less than if we take them out.

You have to make water changes every one or two weeks, even if you keep in mind that if nitrate levels are above 30, you may not be changing enough water often enough.

Watch the behavior of your fish

Watching the fish is important to make sure there are no problems with them. Pay attention to how they are swimming, where they are spending their time in the tank and how they look.

Watch the behavior of your goldfish

Fortunately, seeing the Goldfish is fun and enjoyable, that's why we have them at home, after all.

When you notice a change in their appearance or behavior, make a water change.

It should not be a day when they are not controlled, because sometimes many things can change in a short period of time.

Aquarium cleaning

There are lots of tools for aquarium maintenance that can be used to clean the glass. Some work with magnets and others with telescopic handles.

The key is never to use soap or detergents to clean the fish tank and its decoration. When cleaning your aquarium, always remove any decoration and rinse well with warm tap water.

Try to do not remove the fish from the fish tank while cleaning if possible, since environmental changes can stress the fish and make them sick.

Clean the v /> as is and use a gravel vacuum or siphoner to clean the gravel or substrate.

When using a gravel vacuum, stop once the water level in the tank has dropped by about a third. I should give you enough time to clean most of the gravel and tank. You can finish the rest of the gravel in the next cleaning.

When you change the water, make sure the temperature is the same as that of the aquarium before filling it.

What is a goldfish?

If you are thinking of getting hold of a goldfish fish As a pet, you have made a great choice. The goldfish or "goldfish" is one of the most common, popular, economical and available types of pet fish today. Both fans and breeders have been fascinated with these brilliant creatures for almost two thousand years, which has result in hundreds and hundreds of different varieties.

Goldfish are an excellent pet for both aquatic enthusiasts and new aquarium owners. But you must know everything you need about these fish so you can take care of them properly, something that we explain below.

Prepare the home of a Goldfish

Common goldfish are actually one of the largest species and They can grow to 45 cm. For a single common goldfish, some experts recommend a tank with a minimum size of 150 liters, a larger one will be recommended for a Goldfish (about 200 liters).

While it is possible to keep a goldfish in a fishbowl, goldfish are very dirty and you will have to change the water much more frequently than in an aquarium. Another drawback of fish tanks is that most of them are too small to adapt to a filtration system, and the rounded and conical design does not provide enough surface for an adequate oxygen exchange.

On the other hand, it is better than do not place the tank in a place where temperatures change Y avoid a lot of natural light since it can cause the growth of algae if it is too bright, in addition to the windows usually have drafts.

As for the aquarium water of our Goldfish, andIt's important that you never put tap water untreated in your aquarium, since Chlorine and other heavy metals and pollutants can kill fish. You must keep the fishbowl full, leaving approximately 5 cm of space at the top.

Goldfish they prefer cold water, but it is also known that they live in slightly warmer waters. The ideal water temperature for common goldfish is between 65 and 68 degrees Fahrenheit. To ensure you reach these temperatures you must have a thermometer in your aquarium.

What can a Goldfish eat?

In nature, Goldfish chew aquatic plants, fish eggs, insect larvae, crustaceans and even other fish More smalls. As pets, goldfish remain omnivorous, but the menu changes slightly.

All fish food is not created equally, and foods that are manufactured specifically for Golsfish they will have different nutrients that will be suitable for their development, so that Try to buy specific food for this kind of fish. Goldfish food usually It contains less protein and more carbohydrates than other types of fish food, so we insist that it should be specific food for them and it is strictly forbidden to give human food.

Of course, as a special gift, you can feed your Goldfish with boiled vegetables (cut into pieces of course) like Peas, carrots, oranges or zucchini, lyophilized brine shrimp and blood worms. Further, Try feeding your Goldfish with freeze-dried food instead of live food whenever possible to prevent disease transfer.

How often do I need to feed my Goldfish?

Goldfish are excellent pets for travelers because They can be up to 2 weeks without food. However, it is better to provide your fish with an automatic fish feeder if you plan to leave for an extended period of time.

It is also important not to overfeed your fish. Usually a small pinch of food two or three times a day will be enough, but it depends on the amount of fish. Any food that is left without eating will sink into the bottom of the tank, decompose and contaminate the water. Goldfish metabolisms slow down and accelerate with water temperature, so If the water is cold, you may not even need to eat as often.

Goldfish Aquariums

Generally, many people when they start this hobby are motivated by how simple it seems to be to have a few goldfish inside a glass box with water, but the issue goes much further. To maintain an aquarium with fish or as with any other animal, we must be clear that we are dealing with living beings, that although they are "our pets" we must respect, care for and commit to trying to give them the best possible conditions. It is for this reason that it is very important to inform yourself well before you begin, be clear about the needs of our fish, invertebrates and plants, and above all have a lot of patience, since everything in life has its cycle.

When thinking about an aquarium we must be clear that we are talking about trying to imitate nature by creating an unnatural ecosystem where we will try to maintain species with the best possible conditions and that they can interact in balance.

This aquarium does not require a heating system (thermo heater), since the species that will live in it are rather cold water species. The marketed species that is suitable for these types of aquariums are the Carassius or Goldfish, although there are many others that can live in the same conditions. Carassius are fish that reach a good size, so it is important to define an appropriate aquarium size. Generalmente se piensa que el acuario de agua fría no tiene mayores requerimientos, pero al igual que todo sistema, debe tener un sistema potente y adecuado de filtrado, ya que, los Carassius son peces que remueven mucho el fondo del acuario en busca de comida, por lo que, un adecuado sistema de filtrado que capture las partículas en suspensión es importante. En este tipo de acuario no son muchas las plantas que sobreviven a los carassius por lo que generalmente sólo se recomienda colocar Vallisneria gigante o Anubias como planta decorativas, aunque podemos colocar otras variedades, los tubos florescentes, leds, tubos PL, son adecuados, casi podríamos decir que nos tenemos de preocupar solamente de que la luz que utilizemos resalte los colores de nuestros peces. Dado que las plantas que hemos mencionado toleran casi todas las condiciones de luz

Es importante destacar que se puede desarrollar un acuario de agua fría con especies no comerciales, sobre todo especies de nuestros ríos, por lo que la explicación anterior corresponde a un acuario sólo considerando la especie que comúnmente se comercializa, aunque en este caso tendremos de asegurarnos que las especies que tengamos no estén protegidas por la ley y por tanto cometamos una infracción que puede ocasionar una cuantiosa multa pudiendo llegar incluso a miles de euros.

¿Cuál es el tamaño adecuado para un acuario?

A pesar de sonar como una pregunta simple existen distintos factores a considerar. El tamaño adecuado estará en función del espacio que tengamos para colocar el acuario, el presupuesto y algunas consideraciones más.

La primera limitante será el espacio físico del cual dispongamos, dentro de esta limitaciones tenemos de considerar por un tema de comodidad al trabajar en él (mantención, limpieza y plantado) que no mida más de 60 cm. de altura, en cuanto a la profundidad esta tendría de ser proporcional al largo y ancho, un acuario muy ancho pero muy bajo se parecerá mas a una tortuguera que a un acuario propiamente dicho y uno de muy largo y estrecho nos parecerá un pasillo con pocas sensación de profundidad e incomodo para nuestros peces. El largo dependerá de nuestro espacio y finalmente presupuesto. Cabe decir que siempre es mejor tener un acuario más pequeño pero equipado adecuadamente a tener un acuario muy grande, mal equipado y con problemas constantes.

Una vez decidido el tamaño del acuario debemos calcular el volumen, éste nos será necesario para usar todos los aditivos o medicaciones que debamos introducir, para ello tenemos de usar esta formula

V = largo (cms.) x alto (cms.) x fondo (cms.) / 1.000

por ejemplo un acuario de 100 x 50 x 50 = 250 litros.

La decoración de un acuario de Goldfish será sencilla, básicamente algo de gravilla alguna pieza de decoración y plantas.

Empecemos pues por las gravillas: Dependiendo del tipo de acuario este deberá tener un sustrato abonado en caso de querer plantas naturales o solamente gravilla en caso de plantas de plástico o decoración tanto natural (troncos, piedras) como artificial.

Respecto al resto de la decoración podemos utilizar cualquier tipo de elemento natural que no sea calcáreo, debemos evitar por ejemplo las conchas, pues desestabilizan el ph del agua y elementos de decoración especiales para acuarios, aquí también debemos evitar piezas decorativas que no sean especificas para acuario, pues pueden envenenar el agua de nuestro acuario y matar a nuestros peces

El filtrado debe ser lo más potente y eficaz posible, tenemos que considerar que el corazón de nuestro acuario será el sistema de filtrado por lo que la mayor recomendación es no economizar en este punto, es decir, mientras mejor el/los filtros mayor calidad de agua ofreceremos a nuestros peces y por ello los tendremos en mejor estado. Podríamos decir que un sistema de filtración bueno debe ser capaz de filtrar el agua total del acuario al menos 4 a 6 veces en 1 hora.

Cuando un acuario está recién instalado no es adecuado colocar peces hasta un par de semanas a menos que se ocupe algún producto químico que neutralice algunos productos químicos e incentive la formación de bacterias nitrificantes en nuestro acuario. Hoy en día existen gran cantidad de productos acondicionadores de agua y bacterias que nos permiten poner peces al cabo de un par de días.

Si ha decidido poner plantas naturales en su acuario lo ideal es ponerlas desde el mismo minuto que instala su acuario, considerando que necesitaran luz (calidad e intensidad), abono como alimento para su desarrollo y crecimiento y al menos 8 a 10 horas de luz diaria.

Lo ideal es realizar cambios semanales de un 10 – 30% del agua del acuario. Este reemplazo nos permitirá eliminar sustancias químicas que sólo se pueden eliminar de esta forma o usando materiales filtrantes para filtración química. Además del cambio de agua, se recomienda podar las hojas feas, aspirar el fondo (gravilla) utilizando una aspiradora para acuario o un sifón.

Los cristales del acuario se pueden limpiar utilizando un imán limpia cristal, que permite eliminar pequeñas algas que se forman en los cristales.

El acuario nunca se debe desmontar para limpiar, ya que, se pierde todo el equilibrio logrado durante el período de ciclaje y maduración, es mucho mejor un mantenimiento adecuado que una limpieza ocasional.

Al igual que en otro tipo de acuarios los principales parámetros son pH, KH (dureza carbonatada), GH (dureza general), NO2 (nitritos) y NO3 (nitratos). Para medirlos existen test que nos entregaran estos valores.

Es importante tener en cuenta que los peces necesitan una dieta variada, lo ideal es buscar una buena marca de alimentos y combinarlo con algo de alimento vivo y también alimento congelado. Es preferible alimentar menos que más, sobre todo si consideramos que los peces tienen la capacidad en la naturaleza de pasar períodos sin alimento. Un acuario con peces sanos puede estar sin agregársele alimento varios días sin problema, siempre que esto no ocurra muy seguido, una recomendación seria la de dejar de alimentar un día a la semana, esto hace que los peces rebusquen el alimento que ha quedado en el acuario.

El Goldfish es un pez omnívoro. Entre los alimentos que le podemos suministrar se encuentran: guisante (hervido y sin piel), pepino, lechuga, espinaca, brócoli, coliflor, larva roja, moscas de fruta, cangrejo y camarón, también aceptara de buen grado alimentos congelados.

Es muy importante que le proporcionemos un equilibrio entre la comida seca comercial y verduras, sobre todo guisantes, ya que estos peces son propensos a tener obstrucciones intestinales que les pueden producir la muerte. Así mismo, es preferible que la comida seca se humedezca primero para que se hinche antes de que la ingiera el pez para evitar la inflamación de la vejiga.

La Temperatura del agua introducida al acuario es muy variable, depende de la zona donde se toma, así mismo la altitud juega un papel muy importante, debemos considerar que los Goldfish peces de agua templada, tolerando un amplio rango de temperatura de 14 a 22 grados sin presentar ningún tipo de problema, pueden sobrevivir a temperaturas más altas y más bajas pero siempre bajo estrés.

El agua que se introduce al acuario debe de tener ciertas características, como lo es, pH de 7-8.5, amonio, nitritos y nitratos en “0” o muy cercano a él, estos parámetros son muy importantes, ya que si no están dentro de estos rangos será muy difícil poder controlarlos en el acuario ocasionando grandes problemas en el crecimiento y salud de los Goldfish.

Hay cuatro formas de identificar el sexo en los Goldfish, estas son:

  • Los machos son fácilmente identificables cuando están listos para reproducirse, pues desarrollan unos puntos blancos sobre las branquias y aletas pectorales conocidos con el nombre de “tubérculos reproductores” y tienen el aspecto de granitos de sal.
  • Otra forma de determinar el sexo del Goldfish es por el cortejo. El macho golpea su cabeza ligera e insistentemente contra el abdomen de la hembra.
  • Los Goldfish tienen un solo orificio que cumple con la función de ano y con la de aparato reproductor. En los machos el orificio es cóncavo hacia adentro, mientras que en la hembra es cóncavo hacia afuera.
  • Las hembras adultas de aspecto saludable suelen ser más gordas y anchas que los machos, mientras que estos últimos son más esbeltos en el área del abdomen.

- Un solo ejemplar

Cada ejemplar de goldfish necesita al menos unos 40 litros de agua para mantenerse adecuadamente. Para que puedas imaginarte el tamaño requerido te explicaremos en centímetros las dimensiones mínimas que debería tener el acuario: 50 cm de ancho x 40 cm de alto x 30 cm de fondo.

No obstante, y aunque solo se tenga un único pez, siempre se debe intentar elegir el acuario de mayor tamaño posible. De esta forma no solo se encontrará más cómodo el pez sino que nosotros podremos disfrutar de un acuario hermoso y bien decorado.

- Comunidad de goldfish

Si por el contrario te planteas tener una pequeña comunidad de goldfish en lugar de un solo ejemplar debes tener claro que el acuario deberá ser más grande, proporcional al espacio que requiere cada pez en particular. En una pecera de unos 150 litros podrías tener entre 3 y 4 goldfish por ejemplo.

El goldfish como ya hemos mencionado es muy resistente y en este caso vuelve a demostrarlo: prefiere las aguas de dureza algo alta y se adaptará entre los 10 y 15 GH, por otro lado soportará entre los 6,5 y 8 PH. Como podéis observar estos son factores que encontramos en casi cualquier agua por lo que eligiendo una de una calidad nuestro goldfish se mantendrá bien.

Plantas para el acuario del goldfish

Debes evitar todas aquellas plantas que sean pequeñas y tiernas, el goldfish es un comedor voraz y probablemente acabará con plantas delicadas rápidamente. Apuesta por plantas de la familia de las Anubiaspor ejemplo ya que son resistentes.

También puedes pensar en hacerte con plantas de decoración falsas. Este tipo de vegetación está recomendada para peces resistes como es el goldfish pero no para otras especies como el betta splenders ya que sus aletas son muy sensibles y podría lastimarse.

Otras opciones que podríamos incluir en un acuario para un goldfish son las siguientes:

  • Egeria Densa
  • Salvinia Cucullata
  • Echinodorus Tenellus
  • Ceratophyllym Demersum
  • Riccia Fluitans
  • Ceratopteris Cornuta
  • Saggitaria Platyphylla
  • Lemma Minor
  • Microsorum Pteropus
  • Eichhornia Crassipes
  • Bolbitis Heudelotii
  • Limnobium Laevigatum
  • Vallisnea Spiralis Tiger
  • Vallisneria Americana Biwaensis
  • Crinum Thaianum
  • Ceratophyllym Demersum
  • Riccia Fluitans

La grava del acuario

Es muy importante poner una capa gruesa de grava (1,5 - 2,5 centímetros) que sea de de textura gruesa por distintas razones: La principal y más importante es para la correcta absorción de las deposiciones del pez y los restos de la alimentación del goldfish pero también será útil si tenemos plantas ya que permite que las raíces estén protegidas y puedan expandirse bien.

Si por el contrario quieres optar por arena fina (similar a la arena de playa) pero quieres seguir contando con la presencia de vegetación, deberás hacerlo utilizando una maceta en la que pondrás las plantas con arena gruesa.

¿Qué tipo de grava elegir?

En ExpertoAnimal recomendamos utilizar arena de sílice ya sea fina o gruesa, es una muy buena opción para diferentes tipos de acuario ya que no altera el PH ni la dureza, es neutra. Por otro lado, también podrías plantearte el uso de grava calcárea como la arena de coral pues el goldfish es un pez que soporta mejor las durezas altas y este tipo de grava lo aporta.


En este aspecto podemos ser muy creativos. Como hemos explicado anteriormente, el goldfish es un pez muy resiste que puede adaptarse a tipos de entornos muy diversos. Podemos ubicar en nuestro acuario troncos, vegetación y figuras de todo tipo. Acude a cualquier comercio para descubrir las opciones que allí tienen y personaliza tu acuario.

Herramientas técnicas

Si deseas que tus peces goldfish vivan mucho tiempo debes procurarles un ambiente favorable en el que se se sientan cómodos. Toma nota de los elementos que no pueden faltar en tu acuario:

Los filtros son herramientas muy útiles para una buena higiene del acuario. Especialmente si este es grande el filtro se vuelve más que necesario. Existen diversos tipos y muchas opciones en el mercado.

- Temperatura

El goldfish es un pez muy resistente y normalmente es muy conocido entre los peces de agua fría. No obstante, que sea resistente a bajas temperaturas no significa que no pueda vivir adecuadamente en un entorno cálido.

El goldfish sitúa su supervivencia entre los 10ºC y los 32ºC siendo estos extremos un poco peligrosos para su supervivencia. A media de 21ºC es adecuada para que se encuentre cómodo. Puedes hacerte con un termómetro para comprobar que todo funciona adecuadamente.

En contacto con las temperaturas más altas, unos 26ºC por ejemplo, el goldfish se muestra más acelerado y activo.

Es muy importante ubicar un aireador en el acuario del goldfish de esta forma se expandirán las burbujas por todo el ambiente y no necesitará salir a respirar a la superficie de forma constante. Cuanto más alta sea la temperatura, más importante será la presencia del aireador. Es un producto muy económico.

If you want to read more articles similar to Acuario del goldfish, we recommend that you enter our What you need to know section.

Análisis del Agua para comprobar los parámetros críticos

Hacer los test de análisis del agua de manera regular es una de las partes más importantes de cuidar tus peces goldfish, asegurándote de que su ambiente permanece seguro para ellos.

La mala calidad del agua es el principal asesino de los peces de acuario, pero el problema es que el agua puede verse muy bien. No tiene que tener un aspecto turbio o desagradable para que sea extremadamente tóxica para tus peces.

Further, los cambios bruscos en la temperatura o en la química del agua pueden ser dañinos, incluso fatales para los peces dorados.

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  • Por eso usamos kits de pruebas. Los kits de de análisis del agua son la única manera de saber qué está pasando con el agua.

    Después de añadir los peces, la calidad del agua va cambiando con el tiempo. Al analizar el agua periódicamente, nos aseguramos de que nada se escape de control antes de que sea demasiado tarde.

    Se recomienda analizar el agua cada semana en un acuario establecido, es decir, uno que tenga más de un mes y haya sido ciclado.

    Los niveles más importantes a verificar son los niveles de amoníaco, nitrito, nitrato, pH, KH Y GH para asegurarse de que están dentro de los rangos recomendados.

    El pH no es crítico, pero idealmente debería estar entre 7.0 y 8.4.

    Es una buena idea revisar el pH todos los días. Esto se debe a que el pH puede bajar repentinamente sin previo aviso, dejando tu acuario destruido.

    Es recomendable utilizar una alerta de pH y/o amoníaco como este en el acuario para mantenerlo controlado sin tener que analizar el agua diariamente. Todo lo que hay que hacer es mirarlo cuando se alimenta a los peces.