family

Catfish: aquarium species

Almost all members of the family of catfish unpretentious, so they are recommended even for beginner aquarists. But still some features to care for them.

In a group of catfish includes more than 200 species of fish, but in the aquarium you can hold not all members of this family. This is due to the physiological characteristics of individual species.

Some catfish in adulthood reach an impressive size, so they begin to pose a danger to small inhabitants of the aquarium. In addition, there are breeds which differ quite aggressive in nature, so they too are not suitable for keeping with other fish.

Popular species of catfish

Of course, you can only breed catfish, but the majority of aquarists prefer to choose peaceful members of this large family that they get along with other Pets.

The most popular species suitable for aquarium rearing are: Continue reading

Fish of the Black sea

The fish fauna of the Black sea is peculiar. The class of fishes that includes about 20 000 species, is divided into two sharply distinct branches — the cartilaginous and bony fish. In the Black sea are mainly of bony fish and only four cartilaginous family: cat sharks, prickly sharks, common stingrays and stingrays. Out of 167 species of sea fish of 37 species is primarily freshwater, 27 – 103 and brackish – marine. A significant part of the primary freshwater species that live in coastal lakes and river estuaries, can tolerate some salinization of water. Many of them (several species of herring, almost all servie fish, etc.) are semi-migratory and passage species, and some species are fully adapted to marine conditions of life.

Most of the group of brackish-water fishes of marine origin can withstand large desalination, and others (several species of gobies, etc.) live in fresh water. It is autochthonous relict species characteristic of the Ponto-Caspian basin. Their origin is connected with seas that filled the black sea geosyncline during the Neogene. In the third group — marine fish — can distinguish Continue reading

Predatory aquarium fish

Quote: “Who wants to live must fight. And who doesn’t want to resist in this world
eternal struggle, he has no right to life”.
Dear reader, this article focuses on the predators freshwater aquarium. Online wanders a lot of tall tales on the subject, to the extent that Angelfish is fierce predators of the aquarium.
Therefore, before to lay out our selection of predatory fish, let us define the concepts.
All animals can be divided into carnivores and herbivores:
CARNIVOROUS – those who feed exclusively on meat.
HERBIVORES are those who eat only plants.
Now it is worth noting the fact that in nature is very rare to find a PREDATORY ANIMAL that eats only meat. For example, cats! Cats are predators, but all the happy owners of Barsik and Murzik know that their Pets love to chew grass and house plants.
Same situation is with fish. In a huge aquarium the Kingdom very hard to find “fish masueco”. Perhaps that would not. Do not renounce, but in the diet of all aquarium fishes includes both plant and animal food.
From the above we can conclude – PREDATORY AQUARIUM FISH in the true sense of the word does not exist. Speaking of chasnosti fish most likely appropriate the word aggression. But aggression has its own trick question – after all, even guppies exhibit intraspecific aggression, although predators they by no means pull. Continue reading

The rest of the "Marine aquarium"
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