Threadfin acara
Animal
The threadfin acara, also known as Heckel's thread-finned acara, is a South American species of cichlid fish. It is the only member of the genus Acarichthys and is native to rivers in the Amazon and Essequibo basins in tropical South America, and... Wikipedia
Scientific name: Acarichthys heckelii
Size: 4.7-5.9 inches
Class: Actinopterygii
Family: Cichlidae
Genus: Acarichthys; C. H. Eigenmann, 1912
Tribe: Geophagini