Danio erythromicron Danio erythromicron Danio erythromicron, often known as emerald dwarf rasbora, is a species of cyprinid fish which is endemic to Inle Lake in Myanmar. In 1999, it was suggested that the species be transferred to the genus "Danio" based on morphological data, but it was cautioned that more research would be necessary. A phylogenetic analysis of "Danio" found it indeed close to that genus, but its precise placement was still indeterminable. Shortly thereafter, a new species, "Danio margaritatus", was described under the name "Celestichthys margaritatus". However, this new species was quickly moved into "Danio" following further analysis. Subsequent analysis of
Danio margaritatus Danio margaritatus Danio margaritatus, the celestial pearl danio, often referred to in the aquarium trade as galaxy rasbora or "Microrasbora" sp. 'Galaxy', is a small cyprinid from Myanmar. It has so far been found only in a very small area near Hopong east of Inle Lake, at an altitude of over 1,000 m (3,400 ft). Its habitat is part of the Salween basin, namely the Nam Lang and Nam Pawn Rivers. Discovered in 2006, the species quickly appeared in the aquarium trade, where its small size and bright colours made it an instant hit. This is a small, plump danionin