Polygamous species. Females incubate eggs in the mouth for 15 to 20 days. Astatotilapia Brown Victoria, sandy biotopes. Length - up to 13 cm. the body is greyish-green, with 8-10…

Continue reading →

Live-bearing aquarium fish
Most viviparous fishes belong to the family Poeciliidae Cyprinodontiformes squad. They produce their offspring not in the form of eggs, but in the form of already formed fry, which have…

Continue reading →

How to pick up fish in the aquarium
Tips on how to choose the right kind of fish for your aquarium. There are a huge number of species of fish, which makes the choice quite difficult for a…

Continue reading →

How to pick up fish in the aquarium

Tips on how to choose the right kind of fish for your aquarium.

There are a huge number of species of fish, which makes the choice quite difficult for a beginner in this business. Many people give up doing aquarium because of the fact that they choose the wrong kind of fish for their aquarium and because of the wrong care for them. Choosing the right fish is an important task that you can easily cope with by doing a little research. What kind of freshwater fish you choose ultimately depends on many factors. However, not all fish species can coexist.
The adult size and size of aquarium
If you have room only for a small aquarium, do not buy fish that will grow much. The size of the adult does not depend on the size of the aquarium.

In order for the fish to have enough space, the length of the aquarium should be at least 6 times the possible length of the fish, but be reasonable – do not keep a fish 2 cm long in a 12 cm aquarium! It is necessary to calculate approximately how much fish can fit in your aquarium (more information can be found in our population calculation guide), and after the formation of the ecosystem gradually increase the number of fish, to prevent a sharp increase in the concentration of ammonia.

Note that some fish require more space, such as active, or defending their territory fish. Usually in stores are sold fry and in the future they grow significantly. Some species can reach 30 cm, so you should not immediately buy your favorite fish – you need to find out the size of an adult.

As a rule, the larger the size of the aquarium, the better. The stability of parameters in large volumes of water is much higher. The more water, the lower the concentration of substances and the safer the water. Usually recommend aquarium not less than on 45 liters for 1 vicious fighter small fish, not less 60 liters for shoal fish, growing until 5 centimeters, but the best for newcomer will aquarium volume of from 85 until 120 liters, or more. With a large aquarium is easier to handle, besides requirements on fish populations are not very strict.

When breeding regular goldfish, plan an aquarium of 180 liters for 1 fish, and 55 liters extra for each additional individual. The length of the aquarium should be at least 120 cm (4 feet), in order for the fish to have enough space. In fact, goldfish are more suited to living in a pond.

When breeding other goldfish species, plan an aquarium of 140 liters for 1 fish, and 45 liters extra for each additional individual. In order to provide enough space for fish, the aquarium must be at least 90 cm in length.
At the pet store, you can feel like a kid in a candy store, but don’t be tempted to buy a bunch of different species. Some fish prefer to live in groups, others-in pairs, and others-alone, ie in the aquarium should be only fish of the same species.
Jamb (or group) of fish should consist of at least six individuals, and the more the better. If the space of the aquarium is not enough to contain six individuals, it is better not to buy such species-fish outside the school will feel unprotected and constantly hide. It also increases the risk of disease.

If fish prefer to live in pairs, it means that one individual must be a male and the other-a female. Males tend to look prettier than females, but don’t be tempted to buy two males – they can fight each other, injure or even kill each other. In some circumstances, it is permissible to keep two males, but it is necessary to provide them with enough space to establish their own territories.

Some species of fighting fish defend their territory and can behave aggressively to individuals of their species, and even to just like. It is necessary to be careful in this matter and not to settle with them fish on which they can attack. In some cases, the best solution would be to acquire only one male of the species.

If you plan to keep several different species of fish in one aquarium (the so-called community), it is necessary to understand the issue in detail and make sure that the desired species of fish are able to live together. It is best that all fish are the same size, otherwise larger individuals can eat smaller ones! It is important to make sure that all fish have similar water needs and that they are not aggressive towards each other. Do not forget to find out if this species can live with invertebrates (shrimp, etc.), if you have them.

Small fish, in most cases, should not live together with larger individuals. Try not to forget about the difference in the size of the fish. If a small fish can fit in the mouth of a larger one, it usually becomes food. An example of this can be angel fish and neon, or decorative goldfish and minnows. Small fish can be an expensive snack!

Some tropical fish like to gather in shoals, so you need to buy at least 6 individuals of these species, but the more – the better. In large shoals (from 10 to 15 fish or more-depending on the size of the aquarium), they are more calm and behave more naturally. Smaller groups of fish can hide and behave timidly. Some fish live in pairs, and some should be kept alone. Other fish can defend their territory aggressively enough and, if they breed, they attack anything that comes close to where the eggs are laid. For such fish in the aquarium should be closely monitored and avoid fights.

And if you have live plants in your aquarium, you need to make sure that new fish will not eat them.
Water requirements
The stores sell fish from a wide variety of habitats around the world, and they can’t live in the same type of water. Obviously, mixing marine and freshwater fish species is a bad idea, so unfortunately, your children will not be able to collect Nemo and goldfish in one aquarium.
Another bad idea is to keep tropical and cold-water fish together in the same aquarium. It is necessary to know whether it is necessary to heat the water for the desired species of fish, or not, and what water temperature is the best for them. If you decide to make a tropical aquarium and start heating the water, fish such as minnows and danios will not like it, as they like colder water. Even tropical fish species have different water temperature requirements. If you plan to keep several different species of fish in your aquarium, make sure the water temperature is suitable for all of them. Tip: the heater Power should be chosen as follows-1 watt per liter and round the resulting value in a big way to the nearest nominal heater. For example, an aquarium of 85 liters needs a heater of 100 watts.
PH level and constant water hardness
Some fish prefer high pH and some low pH; some prefer soft water and others hard. It is very important to choose fish that are suitable for the same conditions. If you find it difficult to make a choice, look for fish from the same region of the world that live together in nature. You can even create a biotope aquarium (with fish and plants specific to a particular place).

First, you need to check the pH level of your tap water. To do this, dial a glass of water and leave the test in it for 24 hours. Constant stiffness can be checked instantly. Many water supply companies add gases and temporary softeners to the water in order to make it more pleasant to drink. They cease to act after 24 hours, so the pH can change both more and less, depending on the territory of residence.

Adaptation of fish to the conditions characteristic of your territory will help to avoid disease, problems with reproduction and premature death. Fish that prefer hard water should not exist with fish that prefer soft water. Of course, there are ways to change the pH, but it will have to do every time you change the water, but we do not recommend this option to beginners.
Some fish will not eat food in pellets, or will only eat one thing at all. Before buying, you need to find out what a particular type of fish eats, and make sure that you can provide them with the required food. If feeding a species seems too difficult, we recommend choosing a different species.
Typical problem
Some fish may be more prone to certain diseases, for example, fish with long fins are significantly more likely to suffer from fin rot than species with short fins. Before choosing fish, it is necessary to study possible problems and take all steps to prevent them.
For beginners, the best choice will be hardy fish, which are easy to care for. Some fish are very sensitive to poor water parameters, and these are better left for aquarists with more experience. Other species are difficult to feed, or they simply require careful care. To have such fish and not to care for them is not fair to the fish. Although the acquisition of specific species may be tempting, the needs of fish should be put first. For healthy and happy fish is much nicer to watch than for the sick!

Remember that fish are wild animals, and in most cases they will behave in the same way as in nature. They may look cute and small, but they will defend their territory and behave aggressively towards each other, fight, and maybe even kill. Moreover, they can hurt you! Therefore, to avoid problems in the future and make your life easier as an aquarist, you need to choose the right kind of fish.
Checklist when choosing fish

How to wash an aquarium
Many, before you buy an aquarium, do not even think about how it should be properly cared for, cleaned and maintained. Some believe that occasionally changing the water and cleaning…


Polygamous species. Females incubate eggs in the mouth for 15 to 20 days. Astatotilapia Brown Victoria, sandy biotopes. Length - up to 13 cm. the body is greyish-green, with 8-10…


Apistogramma (Apistogramma) Many species have long, protruding rays in the front of the dorsal fin. Peaceful, calm fish. Kept in the thickets of plants at the bottom. Fish tank for…


How to get rid of snails in the aquarium?
Snails multiply very quickly, and, like a forest fire in the shortest possible time fill your aquarium. They eat up aquarium plants, disturb the ecological balance and simply spoil the…