Hamilton (1822) describedTrichopodus laliusfrom Gangetic provinces. Menon (1999) treated it under the genus Polyacanthus. Now the species is under Trichogaster (Topfer and Schindler 2009; Tan and Kottelat 2009).
Although there are no data on population, the inferred extent of occurrence of the species is very wide and there are no significant threats across its range. Thus Trichogaster lalius is assessed as Least Concern.
These lovely little fishes are often sold alive in bottles of water at Calcutta and they thrive well in an aquarium. It attains 5 cm. in length. It is smallest of the genus and certainly one of the most beautiful. A highly satisfactory and interesting aquarium fish. The species is used for food at the subsistence level.