Red-listed fish
European grayling . Thymallus thymallus (Linnaeus, 1758), European Grayling . One species of grayling. - Listed in the CSO (1994), the lists of the Bern Convention and IUCN and the…

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Bizarre inhabitants of the deep sea
The film is not loaded and after a long wait gives "video file did not download"? There are two possible reasons: 1) the Server on which this film is overloaded,…

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Som. Fishing for catfish

Com belongs to the family somovyh . This is a very large freshwater fish, which was a legend. Catfish grows so large that there were cases of attacks by these fish to Pets and even humans. Catfish has a cylindrical body of elongated shape. Color catfish can have several shades, depending on the water body in which it dwells. Som can be almost black or light yellow, like burbot. But mostly its color is brownish with a greenish tinge. Inhabits Europe, in the Aral sea basin in the European part of Russia.

The maximum weight of 500 kg;

The maximum length is 6.3 m;

The maximum age is 120 years.

Best spots to catch catfish

The best place catfish certainly are holes. Som loves the cool water and the depth that combine holes on the bottom of the pond. The river, which is found in catfish, do not have virtually any holes that are not hiding this predator. If You can not find the pit on the pond, You should just watch the water. Continue reading

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 are the most simple. They should be placed inside the aquarium and fixed to the glass suction cups or special hooks. Water is absorbed in the lower part of the filter passes through the filter element, which is used as a foam or synthetic cotton wool, and then released at the top of the filter. Emerging jet is directed at the surface of water in the tank and thereby effectively enriches the water with oxygen. This type of filter is recommended for all aquariums. The extent of their advancement this filter may, in addition to mechanical filtration of water, and contain a biological filter.

Currently gaining popularity cascading filters. The filter is attached to the outside of the aquarium. Here the container with filter cartridge is located outside the vessel. In the middle of the water is pumped from the aquarium through the intake manifold to the filter. Continue reading

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, and again between the gills of sharks Macedonia and other large fish.

Columbus in 1494 and set anchor off the coast of Cuba, seen catfish hunt with the hangers on the turtles. In our days this hunt with “hunting fish” described by many researchers. Catfish adhesion to the custom of the fishermen of Torre owl Strait, South China, Venezuela, Cuba, Mozambique and Zanzibar. Catch any fish, even sharks, but mainly sea turtles. And the aborigines of Australia hunted with clingy catfish and dugongs.

Start with the fact that they catch in the sea catfish Remora. Then he pierce a hole in the tail, pass through a long thin rope and tightly tie it around the tail. The second, shorter, the twine is passed through the mouth and gills of catfish Remora. So two “moorings” and towed catfish Remora at the side of the Shuttle. Continue reading

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