GLASS CATFISH (Indian glass catfish, Kryptopterus bicirrhis; Cuvier et Valenciennes) — in length reaches 10 cm Its second name — som-Ghost — fish received for the transparency of his body. Visible skeleton and all internal organs. Body strongly elongate and flattened laterally. The dorsal fin is extremely small and is located immediately behind the head; below the head is deeply cut almost to the caudal fin extends continuously oscillating, crystal clear anal fin. In the reflected light of the fish glisten all colors of the rainbow, at the same time, remaining so transparent that through them are visible for the fish items.
In addition to transparency, the glass catfish is distinguished by a long anal fin, a pair of long antennae on the upper jaw, small dorsal fin (from one beam) and the position of the head body to the surface.
Glass catfish (Kryptopterus bicirrhis Cuvier u. Valenciennes) lives in South-East Asia, the Great Sunda Islands, Java, Sumatra and Borneo. Continue reading
Do fish sleep in an aquarium?
What do fish in our aquarium in the afternoon — we can check at any time. And that’s what they do at night when we sleep? You probably haven’t even thought about it, but they also sleep.
Actually, the biological functions of the body fish are very different from mammals. Because of this, owners of aquarium fish is often not familiar with how it works internal organs their underwater Pets.
So, do fish sleep? Yes and no. They are “asleep” in his own way, not the usual way for us. That is, at the time of “rest” they produce a certain type of activity that we call sleep.
People spend in sleep on average eight hours a day. This is equal to approximately one-third of all human life. For humans sleep is a period of time in which our heart rate and breathing decreases, relaxes muscles and a period of inactivity. “Sleep” in animals is defined in the General Veterinary Dictionary as “…a period of rest, during which suspended physical function and reduced sensitivity to external factors”. Continue reading
There are about 1200 species of catfishes that are divided into 31 families and 150 genera. Typical external characteristics, distribution, conditions of keeping and feeding of catfish, will be discussed in the article.
Under the name “catfish” joins more than 1200 species of whiskered fish that is distributed into 31 families and 150 genera. Most of them are found in freshwater reservoirs 5 continents, and only 1% of their number are marine inhabitants. Only in the rivers and lakes of South America is home to about 1000 species of catfish.
Representatives of catfishes are very similar in body structure with Cypriniformes. The body of aquarium fish catfish often covered with bony plates, or protected by spikes. However, aquarium fish catfish no scales present, their body is considered naked. Around the mouth there are several pairs of whiskers. Continue reading