Typically, sharks are considered extremely dangerous animals, and call it being an ordinary fish is sometimes more than difficult. This is not surprising, because, just look at the size of that “fish” and the number of teeth in her mouth. Indeed, virtually all species of sharks are predatory animals. It is immediately noted that there are about 450 different species. However, there are sharks that are as food prefer small fish, plankton, who lives in the water, etc. in Other words, some sharks are natural purifying devices for water. As it turned out, sharks can live not only in seawater, i.e., salt, but also in fresh waters. However, this ability is given not to all representatives of this genus of animals. In this game we will talk about predatory sharks that feed on large species of aquatic creatures.
Moreover, sometimes they are not averse to eat people if they are nearby. The game shark is one fish mysteriously swam in the waters of the river called Thames. It flows through London which is the capital of great Britain. At this time you have to control the movements and actions of a Continue reading
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 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
Goldfish (lat. Carassius auratus auratus) subspecies of the freshwater fish of the genus carp. Her ancestor was domesticated by the man in the VII century ad, and is one of the most popular aquarium fish, presented to a group of breeds of domestic aquatic animals, obtained as a result of centuries of hybridization and directional selection individuals with certain accidental characteristics, resulting from mutations. One of the obsolete naming all home and pond “goldfish” was “gold carp”, derived from General scientific systematic names, Carp.
The history of breeding goldfish Asia has at least a Millennium and originated from children’s hobby to collecting in which the housing was offered and developed in cages, in pens, in wells, in tubs and barrels for all small and medium animals — as the first kind of Pets at home. Continue reading