Category: Fish
These South American natives are a long-time favorite of fish-keepers and are named for the vibrant red coloration on their head. In the wild, they inhabit stretches of mineral-deficient (soft), acidic river that is rich in decaying plant matter. They are sensitive to changes in water conditions and are considered “canaries in the coal mine” for aquarium water quality.
https://en.wikipedia.org/wiki/Rummy-nose_tetra
http://www.petsource.org/aquatic-by-species/aquatic-fresh-water/3151-rummynose-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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