Kryptopterus bicirrhus (Asian Glass Catfish), is unusual in a number of ways. As its name implies, it is transparent and some internal organs and the skeleton can be seen. It is also one of the few catfishes that is not benthic (bottom-dwelling), remaining in mid-water. The body is compressed, similar to most other pelagic fishes, rather than depressed. They are shoaling catfishes that must be kept in small groups, not individually, otherwise they will not feed.