The Buenos Aires Tetra is a nice looking and very hardy fish that can live well in almost any type of water. It also grows a little larger than other Tetras, reaching about 10 cm. It's peaceful and very easy to keep in community tanks, but beware: the Buenos Aires Tetra is an avid plant eater, so you must keep it with plenty of fast growing plants, or no plants at all. The fish portrayed above is a male, females have a much more rounded body. Breeding is said to be relatively easy.