Phractocephalus red (Phractocephalus hemiliopterus), redtail Catfish or a Red tail catfish – aquarium fish of the family Pimelodovye or flathead catfish.
In Nature, Red tail catfish lives in South America, in the Amazon basin. Such fish often lead the lovers of big fish, also trigger them in public aquariums to attract the attention of visitors. In their homeland, in Colombia and Brazil, this fish is called perrera. These catfish are also bred in commercial purposes for food, although their meat has a dark color.
Appearance and sex differences
Phractocephalus red – very attractive aquarium fish. Its oblong body is a large flat head with large eyes, wide mouth and three pairs of whiskers, two of which adorn the lower jaw of the fish and one upper. In this case two pairs of antennae have long red-tail catfish. Continue reading
Monkfish (Lophius piscatoris), or sea Scorpion, from the squad utilitycompany (Lophiiformes) has a repulsive appearance. He has a huge head, which is the half length of all fish, with big sharp-toothed mouth, mercilessly swallowing the prey: conger eel, red mullet, even small sharks and thousands of sea birds. Being a master of disguise, monkfish, with its dark, often mottled, upper part of the body, almost invisible against the bottom of shallow coastal waters, among the rocks, pebbles and fucus. There he usually likes to lie, podkaraulivaya prey. On both sides of the head, on the edge of the jaw and lips fringed hanging shreds of skin, wiggling in the water, like algae. On each side there are wide fins, and on the back of thin spines with nodular thickening at the end, luring the victim. Monkfish is found in many seas, mainly in the Atlantic and the North sea, all the way to Iceland, at depths of 600 m, but during the spawning season, in spring, it can occur at depths up to 800 m. Spawning mainly occurs to the West of the British Isles. Continue reading
Goldfish: the life or painful death?. speaking about the conditions of the fish, did the emphasis on fish of Asian origin.
To avoid repetition, I will quote the conditions of trouble-free living goldfish in aquariums just a thesis.
1) How can a larger aquarium. The concept of “too much tank” for Asian goldfish can not be in principle – remember that these fish – out pond a priori.
2) the Aquarium should be biologically stable, soil-living (a must!!) plants, powerful filtration system and water aeration.
3) the default mode for the substitution of water – a quarter of the volume per week, do not get involved with massive changes, confusing them a little, and the result (the split fins and osmotic stress) is unlikely to please the aquarist. Continue reading