Pacu fish (Colossoma macropomum)

Pacu fish or tambaqui (Colossoma macropomum) – is one of piranha family known for its lust for blood. But unlike its “cousins” and despite a strong and massive body, colossoma prefers plant food and belongs to herbivorous fish class.

There are a lot of different fishes with pacu name, however quite often their classification is rather confusing. Giant pacu is an interesting, not demanding and easy in care and feed fish, which has its kind of intelligence. Sounds like an ideal aquarium fish, doesn’t it?

Keep reading…Pacu fish (Colossoma macropomum)

Red eye tetra (Moenkhausia sanctaefilomenae)

Redeye tetra (Moenkhausia sanctaefilomenae) once was the most spread and common tetras in a tank. A school of these characins can make any tank look nice and lively, but nowadays the fish has yielded the palm to other fishes.

Is a peaceful active fish, quite easy in care. This fish needs to be in the school much more unlike it’s relative redeye tetra. Regardless of how many of them are in a tank: three, eight or twenty species – they always swim in a school.

red eye tetra

Keep reading…Red eye tetra (Moenkhausia sanctaefilomenae)

Congo tetra (Phenacogrammus interruptus)

Congo tetra (Phenacogrammus interruptus) is a timid, but unspeakably beautiful aquarium fish. Probably, it is the most gorgeous fish of the characin family.

A tank, which has tetra fishes in it, should be thickly planted. The majority of these fishes has a very good looking coloring (due to some special pigments they have, that change their color under different kinds of lights).

The fishes look good in a school. To create the space in a tank so, that the whole fish school is seen and not hidden among the tank plants, it’s necessary to put them thickly almost without any space between the plants.

Therefore, some free space is left around the front tank wall and there the school can swim.

Keep reading…Congo tetra (Phenacogrammus interruptus)

Black tetra (Gymnocorymbus ternetzi)

Gymnocorymbus ternetzi — is a kind of freshwater fishes of the Characidae family. It inhabits in the rivers of Mato Grosso, Paraguay and Rio-Negro. This kind of fish has easily adapted to aquarium conditions, it breeds easily and has a numerous offspring. However, this fish may start nipping other fishes fins, so it’s not a good idea to keep it in a tank with veiled kinds of fishes or with long-finned ones.

A model fish species when scientists created glofish tetra.

Keep reading…Black tetra (Gymnocorymbus ternetzi)