New species of fascinating animals
17 more than 650 new species of marine life discovered by scientists during the international project "Census of marine life" . In different corners of our planet with the help…

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The variety of aquarium fish
What sizes, shapes and colors do not exist in nature among the inhabitants of the underwater world! To date there are over two thousand known species of fish, and how…

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water

The most dangerous sharks

Typically, most people think of sharks as huge ferocious carnivorous fish with very sharp teeth. However, to fit this description all 370 different species of this family does not succeed – between 11-meter whale shark and a six-inch dwarf shark is a huge difference.

Also not be wrong to mention that many people see sharks as monsters, do not hesitate to attack humans at every opportunity. This is largely shaped by the movies. However, the angels of these predators is difficult to call, as attacks on humans do occur, and in most cases involved the following 9 species of sharks:

Great white shark

The most famous and terrifying shark, part-time and is the largest predatory fish on the planet.

More than half of all attacks on people are from that view. Fortunately, most attacks are not fatal, since they are due to curiosity, and, as a consequence of the desire to “eat” the interested object. Of course, this is not encouraging news for the victims of the attacks, but it is important to understand that the person is not interested in the white shark as prey. Continue reading

Butterfly fish Chaetodontidae

One of the brightest and most beautiful families of marine fishes, the calling card of coral reefs, has 10 genera and 130 species. In classical works of butterfly fish are often combined with fish-angels, are not inferior to them in beauty and brightness of color, with whom they have many common morphological features. Butterfly fish distributed mainly in the Indian and Pacific oceans, however they are found and the Atlantic, not only in tropical and subtropical and in temperate waters. All species found in the coastal strip, mainly inhabiting community of coral reefs and rocky outcrops. They are very conservative, do not make migrations and adhering to the same area in a lifetime. Live alone, not forming flocks and swarms. Are a daily way of life. These fish feed on various invertebrates, which are usually extracted from the crevices and other hideouts, to collect on the surface or reefs eat parasites from the skin of large fish.

Medium-sized fish, 7 to 30 centimeters, with high, strongly compressed laterally body. Rostral part of the head elongated into a tube, at the end of which is a small mouth. Dorsal fin undivided, stretches along the torso, sometimes has an extended front end, resembling a pen. Continue reading

Types of aquarium fish

The aquarium in the sense of the population should be a little “underutilized”. Learn how many centimeters to grow those fish, which you have chosen for contents, and make a simple calculation: for every two centimeters of body length (caudal fin not considered) should have no less than a liter of water. To populate the aquarium it is better not adults, and young fish, they can adapt to the conditions. We can recommend swordtail, platies, spotted catfish, blue and black neon, cardinal, erythrozonus, ternario, fiery and scarlet barbs. A community of these fish is a whimsical set of shapes and colors.

Which fish to get ?

A decisive factor in the selection of fish should be the size of the aquarium. To bring you joy, the fish with the necessary conditions of existence.

Need to find out how many of them can hold your aquarium. Usually the calculations are made based on the requirements to the oxygen flow rate based on the ratio of the length of adult fish (without a tail) to the area of the surface of the aquarium: Continue reading

Lean fish in the diet
Primarily a lean fish, you need to buy those moms who have little kids. Fish in the river often caught many bones, so this fish is impossible to give a…

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The aquarium is the best decoration at home and office
The conditions of human life in the metropolis is very far from its natural habitat. Stress, nervosa, depression are an integral part of residents ' life. But what else to…

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