The Bolivian ram (Mikrogeophagus altispinosus) is known under many common names: butterfly ram, Bolivian butterfly cichlid, and ruby cichlid.
The maximal size is up to 8 cm (3.1 in); but usually the males are about 6 cm (5.4 in) long, the females are a bit smaller – about 5—5,5 cm (2 in).
The fish has large head and eyes (they have black edging). The dorsal fin is tall and transparent; it has red edging on top. The tail fin has elongated rays.
Care Level: Beginner
Lifespan: 4 years