In aquariums you can keep any fish. You can catch in the river or in the sea live, intact fish, a carp or a shark, and place it in a suitable container. If to create conditions close to natural, the fish will live to swim, maybe even to reproduce. But traditionally in freshwater aquariums keeping a relatively limited number of species of fish that are best adapted to life behind the glass.
Characins: Neons, neon red, neon black, neon green, Pulcheria, minor, Tetra von Rio, eritrozonus, lemon Tetra, conventional ornatus, ornatus red (phantom), ornatus black, diamond Tetra, ternary, coin, red-nosed Tetra, glass Tetra, pristella, Philomena, flashlight, Royal Tetra, Kerry inpaint, tetragonopterin, Congo blue, red nannostomus, poecilobrium, nannostomus marginatus, Congo yellow, distichum krasnolesnyy, hilodus, piranha, macherot. Continue reading
We all know that water is life. Without water can’t live no living creature. And the first life originated in water. Fish one of the many live organisms living in the aquatic environment. They live in the oceans and seas, rivers and lakes. You can see them in the pond and the stream, in the waters of caves and even in puddles. In nature, there are over 25,000 species of fish, and they are divided into two classes: Bony fish (more than 23 000 species); Cartilaginous fishes (9000 species).
To the class of cartilaginous fish include sharks, rays and chimeras. To the class of bony fish include salmon. okuneobraznyh. preobrazenie. clupeiformes. Cypriniformes, catfishes, wildcookie, flatfish, coloscopie.
Fish are cold blooded vertebrates. their streamlined body covered with scales. They breathe with gills, and with the help of fins and tail to swim. Water entering the body through the mouth, passes through the gills, and spilling over her holes. Oxygen enters the bloodstream Continue reading
Jellyfish, sea anemones, coral polyps, annelid worms, sea cucumbers, sea urchins, starfish, sponges can “burn” or stabbing of a person in contact with them. The range of consequences — from burning the skin before the heart stops.
The most venomous jellyfish is the sea wasp, lives off the coast of Australia. The venom of this beautiful jellyfish paralyzes the heart muscle, death occurs within 1-3 minutes. It seems to be a normal jellyfish light green in color but very poisonous. Its 60 tentacles, each a little less than 40 cm long, has 5,000 flowing down the stings and venom enough to kill 60 people. Australian fishermen, in whose nets such “fish”, beware to use these networks again – you can easily go to the hospital, so strong poison secreted by jellyfish. Continue reading