The dwarf gourami, in potamological nomenclature is referred to as Colisa lalia. Colisa cotra, C. unicolor, Trichogaster lalius, Trichopsis lalius, Trichogaster unicolor, are all names, synonymous to dwarf gourami. The dwarf gourami stands true to its name. It is approximately two inches; however, this may not apply to males, as they size up to six cm.