The dawn tetra, panda tetra, or [Rio] Paraguay tetra (Aphyocharax nattereri) comes from the Rio Paraguay basin in Paraguay and Brazil. It is a schooling fish; suitable temperatures for the Paraguay tetra are . This species is omnivorous with a strong preference for animal food. It will eat normal aquarium fish food, but much prefers live food. The dawn tetra is an egg-scattering species.[1] This tetra is very active and extremely aggressive towards fish of similar or smaller size or those that are slower moving. Not suitable for the community tank.