Types of aquarium filters
Assuming that novice aquarists often have trouble with choosing the right filter for the aquarium, we present the most popular filter for small and large aquariums. Internal filter Internal filters…

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The most interesting facts about the Black sea
I think, in the Black sea swam many of our readers, and more — just heard about it. Indeed, the Black sea is one of the most interesting (and beautiful)…

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The structure of the pharynx, the feeding of fish.
The structure of the pharynx is also closely linked to feeding habits of fish. As indicated, the number and structure of Gill rakers may be very different — from a…

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To settle on the aquarium. Marine fish.
The first two weeks in the system was the rapid development of heterotrophic bacteria feeding on organic waste products of marine fishes . The result is what appear in water…

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