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
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