Bloodfin Tetra also known as:: True Bloodfin Tetra, Glass Bloodfin Tetra, Redfinned Tetra
The Bloodfin Tetra Aphyocharax anisitsi is a good schooling fish and likes to be active, keeping them in a school of 6 or more should keep them from getting a little skittish. This attractive and durable little Tetra has been an aquarium staple for many years as a mainstay of the freshwater fish hobby and for good reason, Bloodfin Tetras are extremely hardy.
.Bloodfin Tetra have silver bodies with an almost greenish hue (depending on the aquarium lighting) and red fins. A great freshwater beginner's fish, the Bloodfin Tetras will to tolerate a wide range of water parameters. Some hobbyists even keep them in cold water tanks or tanks without heaters. They will tolerate a lower temperature than other tropical fish, but use a heater to keep the temperature stable. Avoid widely fluctuating water temperatures that could stress your fish.
The Bloodfin Tetra can get a little skittish at times. Keeping them in a school of 6 or more should limit this behavior and a larger tank with lots of open swimming space will help prevent them from getting injured. They are quite active and should bring lots of activity to a community tank or a tetra tank setup scheme. You may see them nipping at each other from time to time and this is normal behavior amongst the school. It should not be a cause for concern unless it seems to be getting out of hand.