The Penguin Tetra, also known as thayeria boehlkei, is a popular member of the tetra freshwater fish species. Like its cousins, the Cardinal and Neon Tetra, the Penguin Tetra is kept for its attractive pattern, gentle nature, and wide availability. Schools of Penguin Tetra contrast to colorful fish in freshwater aquariums. Penguin Tetras are one of many thousands of species of collectible fish that come from South America. They are a social, schooling species that is found extensively in the Amazon Basin from Peru into Western Brazil. The species prefers slow-moving waters and forms large schools. Like many tetra species,…