There is a great variety of freshwater fish to choose from when you are building and inhabiting an aquarium; Depending on the size and equipment that some fish install, they will adapt better than others.
For example, there are freshwater fish that can not live in an aquarium too small, and oddly enough, some can not be alone in a large aquarium.
It is impossible to make an objective classification from best to worst among the different fish species, since in each of them it has its own function and beauty in an aquarium, and it is very important to have a balanced ecosystem. Anyway, here we present the 10 fish that we think are best for a freshwater aquarium.
The 10 best freshwater fish for your aquarium
You can use this list to find new fish for your freshwater aquarium, or to start a new aquarium. Keep in mind that not all species are compatible with each other, so it is important to check with the pet store before making your purchase.
Killis: These fish are very versatile, and can live in many different types of waters. In addition, these fish have no problem living with other animals, and most predators will ignore them. With a wide variety of colors, these fish are perfect to give a touch of vitality to your aquarium.
Tang fish: These fish are small and colorful. These fish are ideal to keep other bigger fish company. In addition, these fish are very resistant, as long as they do not suffer sudden changes you can survive in almost any type of water.
Animosis: These aquarium fish are quite large (more than 12 cm) and are usually of various colors. These fish do not usually have problems of coexistence with others thanks to their independent and little combative character, and are ideal for large and medium aquariums.
Fish Cat: These fish will be almost all the time at the bottom of the aquarium looking for food remains in the sand. These fish are essential for a medium or large fish tank, as it will help keep it clean. There are a large number of catfish, so no matter what type of aquarium you have, you will find a catfish that can live in your tank.
Calitides : These, like catfish, will live much of their life in the bottom of the tank and perform the same functions as catfish, but these to be smaller and require less care are ideal for small aquariums. Another strong point of the Calitides is their adaptability. These fish will adapt to all types of waters, and habitats.
Tents: These freshwater fish are the most common in the world. You can find a tent for any freshwater aquarium. Being such a versatile and common species, they have developed a great resistance and there is no particular norm for the species.
Mastacembellids : These fish are very easy to maintain. They require almost no special care and will be able to live in almost any environment. These fish have a big problem: they are very territorial, and they may be aggressive with other fish. This makes it difficult to mount an aquarium with these freshwater fish, but it is not impossible. If you have a large rock with a place to hide, the Mastacembellids will occupy it and if other fish do not bother you, it will not cause problems.
Toxotides: The toxotides will live in the highest part of your aquarium, and will try to hunt insects that fly above the water. They will do this by spitting a trickle of water at will with the help of a special organ they have. Usually these fish will not cause problems in the aquarium, and will ignore other fish.
Balloon fish: You are probably familiar with the Fugu, the “most poisonous fish in the world”. This does not mean that their relatives are equally dangerous. There is a wide variety of balloon fish that you can have in your freshwater aquarium without problems. They are not usually aggressive, and can coexist with other peaceful species, but before adding one of these fish to your aquarium consult your store, as these fish are very diverse and it is difficult to know exactly their reaction to new environments.
Rainbow fish: As the name suggests, these fish are multi colored, this is thanks to their large reflective scales. These fish do not require any particular care, and with the right light they are a spectacle.
We hope this list has been useful if you are thinking of creating a freshwater fish tank. If you would like us to add some more species or want to tell us your experience, please leave a comment, we will be happy to answer you. If you liked our work please share it on social networks and we will continue adding lists like this one. You can see more articles like this in our fish section.