Catfish catfish clingy or clingy
In General, large catfish and Remora are most inclined to free life, often travel without assistance. Many small catfish live almost hopeless Remora, sucker, mouth in whales, sharks, manta rays,…

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Black sea (Pont Evxs)
The greatest length of the Black sea from North to South — 580 km and a maximum depth of 2210 m, the average — 1240 m. the salinity of the…

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The inhabitants of the Mediterranean sea
Croatia is a beautiful country. Besides, today it is considered one of the safest countries in Europe. Both flora, fauna, climate, and population, are unlikely to cause trouble for the…

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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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