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Aquarium fish compatibility chart

maintenance, care, compatibility

The compatibility of aquarium fish is a burning issue that many aquarists have. And it does not matter who you are – a novice aquarist or already experienced, when deciding whether to populate an aquarium, you automatically have passing experiences about the compatibility and compatibility of the fish with each other.

The compatibility of aquarium fish is a vast subject, controversial, purely individual for everyone. Therefore, around it there is a lot of debate, controversy and controversy.

Well, let us try to systematize this question in this article and how to fully disclose it!

First, let’s look at the basic rules for selecting aquarium fish.

– When choosing aquarium fish in the first place take into account their compatibility.

– When buying fish, consider their features and intraspecific aggression.

So that your aquarium does not look empty, select fish living in different layers of water.

Below is a table of compatibility of aquarium fish. She is often criticized by aquarists, however, as a guide she can serve well

Below are all other aquarium fish compatibility charts.

skeptical too




Additional material on the compatibility of aquarium fish

from our moderator Esta

So the joyful moment in the life of every aquarist has come – buying fish in an aquarium. The range of fish is very large and diverse. In this article I will try to focus on the basic rules of compatibility of aquarium fish.

What would I pay attention to when buying fish?

Do not rely on the advice of sellers selling in specialized stores. Like any trade worker, it is important for them to sell as many goods as possible at the highest prices.

Before purchasing a fish, you must first make a choice, write down the names of the fish you like, read basic information about your favorites on the content parameters and the behavior of the fish in the aquarium.

List of all aquarium fish alphabetically, with a link to the photo and description

“Aquarium fish from A to Z”

“Aggressive fish-list of black scoundrels”

All about aquarium goldfish

Australian Fish

Fish of Africa: Malawian tsikhidy and fish Tanganyki

The most beautiful aquarium fish: photo video review and description

Types and breeds of guppies with photo and name

All kinds of swordtails

Compatibility of fish in terms of content

There are cold-water and warm-water fish, fish that love soft water, and vice versa, hard-water fish. Fish that need thickets of living plants, and fish that tear, dig and eat all the plants in the aquarium.

Many aquarists may argue that they say cold-water blue neons (temperature of 18-22 degrees) live well with the discus, which needs a temperature of 28-30 degrees.

I agree, they live, but with such a high temperature of water in the aquarium, all the life processes of neons are accelerated, their lifespan is reduced, which is already small – only 2-3 years with good conditions, as a result, neons quickly age and die.

COMPATIBILITY OF GOLDEN FISHES

Compatible guppies, what other fish get along with them?

Further, softwater fish, such as the American cichlids, will not feel comfortable in hard water. They will live, but be fruitful. This is in question.

I will make a reservation that there are exceptions to the rule: professional avkaryumisty easily breed an angelfish in those cities and regions where very hard water flows from the tap, with a hardness index of 30-35. But such a dilution requires experience and material costs associated with constant water softening (special preparations, for example: Tetra ToruMin, reverse osmosis installation, etc.)

Fish feel very well when an aquarist creates conditions for them that are close to natural. So it was with me when I changed the soil in the form of granite chips, which increased the rigidity of the aquarium water, to neutral soil in an aquarium with discus.

The coloring of these wonderful fish, which are rightly called the Kings of the aquarium, has become brighter, the fish have become more mobile and the most important indicator is the formation of pairs and regular spawning.

Therefore, if you have very hard water flowing from the tap, consider buying hard-water fish, such as African cichlids, platillas, guppies, mollies, swordtails, etc.

Compatibility of fish with live plants. If you want an aquarium with a large number of live plants, then I do not recommend buying goldfish, African cichlids, labo, metinnis, tetragonopteruses, African eels, tilapias, etc.

Some fish perceive plants as food, others like to dig and dig up the soil, thus digging up the plants, damaging the tender roots.

This also applies to catfish, most of whom like to dig in the ground. Ancystrus, in the absence of herbal supplements in the diet, can damage the tender leaves of aquarium plants, filling them with a lack of plant foods.

Description and content of martin fish

Compatibility of fish size

The basic rule is this: it is recommended to keep large fish with large ones, and small ones with small ones. Any, even the most peaceful fish, will not miss the opportunity to eat another fish that fits in her mouth.

There is an opinion that if a large fish is planted in the aquarium with fry, then, growing, it will not offend its smaller neighbors. Alas, for me personally, such experiments have not justified themselves.

When a larger individual grew, small fish went to her food.

South American cichlids

Compatibility of fish on the nature of food

This is rarely paid attention, but it would not hurt to take this indicator into account. There are herbivorous and predatory fish.

Features of their power come from the name.

Any herbivorous fish will not give up animal feed, for example, bloodworms.

The peculiarity of herbivorous fish is that they have a small ventricle, the intestines are long, adapted for digesting plant foods.

If such fish are often fed with bloodworms, then over time problems with digestion and liver will begin.

This indicator is especially important to consider when compatibility of cichlids: the majority of African cichlids are animal-eaters, and their combined content with Tanganyki cichlids, trophaus, whose diet is algal fouling and other plant foods is not recommended.

Predatory fish, for example, the African black knife, it is better not to keep in one aquarium with small and peaceful fish. This nocturnal predator will hunt any fish that it can swallow.

From the aquarium with discus, I had to deposit one ancistrus. He, the only one of the three antsistrus living in this aquarium, stuck to the large body of the discus and injured him with a suction mouth.

Such damage can be very dangerous for fish. What was missing in his diet? Fish scales? riddle.

I think this is a feature of his character.

Compatibility of fish on the nature of behavior

This is a big and important topic. A number of fish are very aggressive, especially, aggression is manifested in the period of mating games, spawning and care for offspring. These fish include almost all tsikhlovye.

Most cichlids are large, aggressive (very aggressive during spawning) and predatory fish. They in no case can not be combined with peaceful, small fish.

Cichlid – cichlids in the aquarium

Cychlasmas: species, content, compatibility, reproduction

Among the fish there are, for example, barbs, who will not miss the opportunity to tweak another fish at the fins. Therefore, they are not recommended to contain with veil fish that have beautiful and long fins.

Therefore, in the aquarium you need to keep fish of similar nature.

For example, frisky and playful fish danios, it is not appropriate to look next to the majestic discussions and scalars. With their sharp movements, they can scare the discus.

Once, I became a witness of how, during a sudden movement around the aquarium, the discus darted in different directions, and one of them, quite noticeably, crashed into the glass of the aquarium, and the other, darted upwards, hitting the aquarium cover. By the way, this feature of discus, you need to consider when choosing the location of the aquarium. I want to note that my aquarium with discussions is installed in a very busy place of the apartment.

After some time, the fish are accustomed to and do not react to sudden movements.

Selecting fish in an aquarium according to the nature of their behavior, do not forget to take into account such features that many fish like to hide in shelters. It is necessary to ensure the presence of shelters in the aquarium in the form of grottoes and caves.

Snags in an aquarium, for example, are important for catfish. In addition to shelters, snags are part of the diet. For some fish that love to dig in the ground, the fraction of this soil and its processing is important.

For such fish, sand with rounded edges is preferable.

There are a number of other parameters – the demands on lighting, the rate of flow of water in an aquarium: there are fish who love standing bodies of water, and fish that inhabit rivers with a fast current of water, the degree of salinity of water, etc.

I want to note that you can not stick with the choice of fish, only one of the compatibility parameters. You need to take them into account or try to take into account the complex.

Do not forget when choosing fish to take into account the volume of your aquarium and the size of the fish in adult condition. It is important.

To facilitate the adaptation of fish, to new conditions, you can use the preparation, minimizing the stress of fish from transportation and relocation: Tetra AquaSafe, Tetra Vital, Tetra EasyBalance, Tetra Nitrate Minus.

In any case, the choice is always yours, this is your experience.

Most importantly, if you try to take into account the peculiarities of the content and behavior of the fish you choose, to create comfortable conditions for their existence, they will delight you for many years with their beauty and health, and many of them will delight you with numerous offspring!

We also recommend you to look at the colorful brochure “Popular types of aquarium fish”. This brochure contains all popular types of fish, with a description of their conditions of maintenance, compatibility, feeding + photos.

(to view or download, click on the image)



Compatibility of aquarium fish: tips and tricks

Selection of fish for your aquarium is a very interesting task, but not easy. The choice is truly huge, and we have to take into account not only the features of the appearance of the fish, but also many other factors.

One of them is their compatibility, that is, the ability of different species to live together and feel comfortable in the general aquarium. The main principles of this compatibility will be discussed in this article.

The reasons for the impossibility of sharing some species of fish – and any other living creatures – are intuitively understandable: they live in nature in different climatic zones, in different conditions, and even in the case of close proximity they can be in different relationships with each other, for example, being a predator and the victim. And if we are philosophical about the fact that in the natural environment of the environment some fish eat others, few people want to witness such a picture in their aquarium.

In order to avoid a situation in which fish in an aquarium suffer from their neighborhood, in selecting them you need to know and take into account several basic rules.

Fish species can be:

  • fully compatible;
  • completely incompatible;
  • conditionally (limited) compatible.

Click to enlarge

The first two categories are clear, the third includes species whose coexistence is possible under certain conditions (such as the size of an aquarium, its proper zoning, the presence of shelters, or even particular features of character and life experience of specific fish individuals). I must say that sometimes – very rarely! – in aquariums, somehow, completely incompatible species manage to get along, but these are exceptions.

To facilitate the selection of fish there are species compatibility tables, they are in the special literature and on many aquarium sites. But let us try to formulate the principles by which the compatibility of the fish is determined.

Basic principles of aquarium fish species compatibility

Unlike people, whose temperaments often complement each other, fish feel more comfortable among individuals with similar behavior. Rather, nimble, lively and active fish (such as, for example, zebrafish) usually pay little attention to phlegmatic and brooding gourami or guppy, but the latter, surrounded by fast and nimble neighbors, may experience stress and discomfort.

In addition, they often simply do not get food, as energetic neighbors eat it faster than fish-mattresses have time to get to this food.

Of course, not everyone wants to have a continuous melteshenie or, conversely, a sleepy kingdom in an aquarium. Therefore, you can pick up fish with different temperament, but with the condition that they will occupy different layers of water, for example, calm bottom catfish and fast schooling fish in the middle layers of the aquarium.

What to do if you really want to populate low-compatible species in an aquarium?

Type of aquarium fish and compatibility of different species (table)

The species compatibility table clearly shows which animals are fully compatible with each other, incompatible, or partially compatible under certain conditions. Consider the principles on which the table is built.

  1. Conditions should be well suited for all inhabitants of the aquarium.
  2. You can not put together a predator and prey.
  3. Type of aquarium fish with a calm and sluggish nature should not coexist with fast and active fish. They’ll starve and get stressed.
  4. The inhabitants of the aquarium should be proportionate. Even the most peaceful fish will eat everyone who fits into her mouth.
  5. Some fish show aggression and can attack both neighbors and members of their own species. It is necessary to take into account the peculiarity of behavior.
  6. One type of aquarium fish can not live without a flock of their own kind, the other – without a pair, and the third prefers loneliness. This should not be forgotten if you want to avoid fights or stress.

So, consider what types of aquarium fish are, some aspects of their content and compatibility. In one article it is impossible to describe all types of fish, so we will focus on the most popular representatives and the general characteristics of groups.

Settling an aquarium is a demanding, painstaking task. It requires theoretical knowledge.

Fish may have full or relative compatibility and be completely incompatible.


Most likely, representatives of the same family, detachment, suborder, having the same size and conditions of detention can get along. Common sense will not allow the inhabitants of cooler waters to settle in tropical conditions. Predatory large species can cause serious harm to miniature water inhabitants.

But there are exceptions in any rule, which is confirmed by experienced aquarists. There are many cases where peace-loving fish friendly cohabited with fierce predators for a long time.

At the same time, baseless wars often arose between calm fish.

If you are still not sure that water inhabitants are compatible, you can always use special tables. They contain information that will dispel your doubts and prevent you from making irreparable mistakes.

Look at the aquarium with guppies, lyalius, neon and catfish.

Angelfish are peaceful aquarium fish, which in some countries are called “angel fish”. As representatives of the Cichlid family, they still possess the predator instinct. Is scalar compatibility with other fish possible?

This is a controversial issue, since even schematically acceptable compatibility can end in disrepair for any aquarium fish. If you grow an angelfish with other fish, starting at a young age, they will get along in the future.

The main rule is not to settle them with predatory, fast and aggressive fish and those smaller in size. Who fits in the mouth, those scalar will eat. The compatibility of these aquatic organisms with: catfish, pseudotrophy, danios, petillia, labo and tetras has been proven.

We recommend that you familiarize yourself with the species compatibility table, which does not guarantee a peaceful settlement in one aquarium, but gives an idea of ​​who the scalars usually get along with.

Also the maintenance of this fish is permissible with those who will ignore its bright appearance, not to wag the fins. The first time after the launch of the fish in the tank, follow their behavior. If there are quarrels, fights, other forms of rivalry, immediately settle the roommates.

Consider buying an additional tank.

What species do these pets live in peacefully? In order to avoid mistakes in the settlement, should be considered their compatibility with other fish.

As a rule, they are livable with many peaceful species, however there are exceptions to the rules.

Look at the common aquarium with scalar.

Barbusses are small fish that strive to pinch the beautiful fins of any neighbors, be it scalaries or other beauties. Sometimes they live peacefully, but Sumatra barbs, cherry barbs, tiger barbs can constantly wipe beautiful cichlid angels.

They demonstrate their superiority, and play catch-up, or hide-and-seek, which leads to stress. No shelter or relocation is indispensable. Barbus even though pretty creatures, but too annoying.

In addition to them, even gourami, guppies or labo can become strongly unbelted.

Cichlids from Africa and South America – although they are close relatives of the angelfish, they can show territorial aggression and predatory behavior. Cichlids are single fish, or “family men,” not many breeders manage to keep them in peace and harmony with other aquatic creatures.

The scalar is uncomfortable with them, so the settlement is possible only with individual compatibility, which is checked at a young age.

The cockerels are good neighbors for small cichlids. Can live by themselves.

Male males often conflict with each other than with other fish. One caveat – during spawning, the female and male scalar are aggressive to cockerels, if there is no place to move everyone, arrange additional shelters in the tank.

Somiki corridor – almost all of them live without conflicts and claims, the scalar is also no exception. Somiki live in the lower layers of water, scalars – in the middle.

Each other can be ignored without interfering with living and eating.

Danio – if the fish grew together, very well. If danios are settled as new neighbors, they will be taken for food.

It will not be possible to eat everyone, they will arrange unpleasant endurance tests, proving their superiority. Danio swims in the upper layers of the water, and the scalar well they get. You can install a lot of undergrowth, shelters, a spacious tank so that everyone hides.

For small fish, constant stress is extremely harmful, so take a look at how cichlids react.

Goldfish – so luxurious fish can be maintained with a commensurate Karpov. And with the scalar content is unlikely to be successful. Goldfish live in cool water, and cichlids live in warm water.

In addition, goldfish and scalar are incompatible in nature – a more active cichlid will tear off the fins of such a neighbor. And another important factor is that goldfish quickly pollute the water, while cichlids love cleanliness.

Guppies are small ornamental fish. Get used to scalars from a young age.

But when matured, cichlids can harm guppies. In adults, the predator instincts wake up, which is extremely unpleasant for guppies – it is small, bright and beautiful. If the question arises – where are the guppies gone?

The answer is obvious – they were eaten by scalar.

Can I keep in an aquarium with gourami? Quite, gourami are non-conflict fishes that can stand up for themselves.

Rarely, territorial disputes arise between gouras and these cichlids, but they can be avoided if there is space for swimming and shelter for all fish.

Look at the confrontation of gourami and scalar.

Mollies are viviparous fishes of colorful color. Content with cichlids of this species will be successful if they grow together.

Sometimes mollies gnaw the scalar fins. Over time, they get used to each other, but in case of prolonged conflicts it is better to keep them separate.

Thorns are small omnivorous fish. Naturally, the scalars will be perceived ambiguously, or rather, as food.

According to the conditions of detention each other fit, they eat almost the same food. But terration may be physically affected by the harassment of cichlids. Compatibility can be called relative, because for sure there have been cases where ternation and scalar have gotten along.

However, terntions are small hydrobionts, large neighbors are dangerous to them.

Discus – these aquarium fish can be good companions for cichlids. The scalar and discus have similar conditions and diet.

Even their body shape is a bit identical – and discus and it is difficult for scalars to collect food from the bottom due to disc-shaped symmetry. Therefore, they and others will be able to eat with a special feeder.

The differences between them are discus fish flocks, they feel comfortable in a flock of 5-6 individuals, and the scalars swim in a pair, they love a wide space. Having a large tank for both types will be a big plus.

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