Keeping and Breeding Dwarf Gouramis

The dwarf gourami, Colisa lalia, has an almost translucent blue color, with vertical red to dark orange stripes. In its native range, it is dried for food and kept as an aquarium fish. It has become highly popular for aquaria.

Dwarf gouramis from Singapore may carry dwarf gourami iridovirus. Recent research has shown that 22% of Singapore Colisa lalia carry this virus.

The gourami or gouramis are a family, Osphronemidae, of freshwater perciform fishes. The fish are native to Asia, from Pakistan and India to the Malay Archipelago and north-easterly towards Korea. The name "gourami" is also used for fish of the families Helostomatidae and Anabantidae. "Gouramis" is an example of a redundant plural. Gourami is already plural, in its original language.

Many gouramis have an elongated ray at the front of their pelvic fins. Many species show parental care: some are mouthbrooders, and others, like the Siamese fighting fish (Betta splendens), build bubble nests. Currently, about 90 species are recognised, placed in 4 subfamilies and about 15 genera.

The name Polyacanthidae has also been used for this family. Some fish now classified as gouramis were previously placed in family Anabantidae. The subfamily Belontiinae was recently demoted from the family Belontiidae. As labyrinth fishes, gouramis have a lung-like labyrinth organ that allows them to gulp air and use atmospheric oxygen. This organ is a vital innovation for fishes that often inhabit warm, shallow, oxygen-poor water.