Category: Fish
This native of the Congo River Basin of Africa is commonly kept in aquaria and requires soft, peat-filtered water and a darker substrate. They are happiest at lower light levels and their beautiful rainbow colors are most obvious in subdued lighting. They are a peaceful, schooling fish that are easily intimidated by aggressive tank mates.
https://en.wikipedia.org/wiki/Congo_tetra
http://www.petsource.org/aquatic-by-species/aquatic-fresh-water/3712-congo-tetra.html
The fish that could drown (and other amazing tales)
Fish are masters of aquatic living, though some manage to do pretty well on land, too! Of living species, the mudskipper is probably the best adapted to life out of water - in fact, a mudskipper will drown if it can’t periodically come to the surface! This unusual fish uses its powerful, almost leg-like fins to walk on land and can even use them to “skip” up to 2 feet in the air! Similar to many amphibians, the mudskipper is able to breathe through its skin and the linings of its mouth and throat. It also seals water in its gill chambers when it leaves the water for extended stays on the land, much like a scuba diver brings air with them!-
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