Emerald brohis was introduced to Europe in the nineteenth century from Peru. In nature, these fish are found in waters of Ecuador, Peru and the Amazon headwaters. It is the oldest member of this species of fish living in home aquariums. These fish have become very popular among aquarists because of their activity, they exhibit in the aquarium, and the adaptability under any conditions. Fish have a size of up to 8.5 cm long.
Emerald brohis has a large head with relatively high trunk that gradually decreases to the tail unit. The flat sides of the fish are covered with two rows of hard plates that perform a protective function against the encroachments of predatory fish. Bladed tail unit. Boca fish have a greenish brilliant color, a bright yellow belly and back is pale brown with a slight tinge of green. Unlike the male has a tapered female dorsal fin, except that it is smaller in size and its abdomen less rounded than in females.
As with all types of catfish brohisy are nocturnal. They are very mobile and swim in small groups, so it is desirable to keep their flock of several fish, with a greater proportion of males. Fish swim in a substantially lower water layer, occasionally rising to the surface in order to swallow a bit of air. Brohisov can be kept in community tank with the same peace-loving fish, as they are.
To keep the aquarium for a spacious capacity of 100 liters, densely planted with plants, including floating. There must be a large number of shelters in the form of snags, rocks and caves. As the soil is desirable to use sand or gravel wiped. In the aquarium should not be any sharp objects, as Fish digging can damage his mouth. Continue reading
Hazardous freshwater fish world
Hazardous fish. Recently saw a program on National Geographic about dangerous to humans and fish decided to look on the Internet about this information. Here are a few representatives of this unfriendly company.
Piranha – fish from the family of tetras, subfamily piranha. Habitat rivers and reservoirs in South America. Piranha reach a length of 80 cm and a weight of up to 1 kilogram. Colour in adults olive-silver with purple or red shade and along the edge of the caudal fin runs clear, black border. The structure of the jaws and teeth piranha allows pull out of large chunks of carcass flesh.
Piranha teeth have a triangular shape and a height of 3-5 mm at the closing of the jaws, the teeth of the upper and lower jaw includes exactly into the grooves between them. As a result, pieces of flesh like a razor cut from the carcass. A displacement of the jaws when in a horizontal position, with ease piranha snack veins and even bone. Adult piranha can easily bite a human finger or a stick.
Piranhas are very hungry, and as described by Alfred Bram could easily pounce on prey, which by its size 10 times greater than those voracious predators. He saw with his own eyes piranha attack on an adult crocodile that, or flees, or flipped on its back
and protects his belly. There is one consolation – not all of these bloodthirsty piranhas. Among them are herbivorous species. Continue reading