Trichopodus microlepis (Günther, 1861)
Moonlight gourami
Pla kra di nang,  ปลากระดี่นาง
Trichopodus microlepis
photo by Muséum-Aquarium de Nancy/D. Terver

Family:  Osphronemidae (Gouramies), subfamily: Trichogastrinae
Max. size:  14 cm TL (male/unsexed)
Environment:  demersal; freshwater; pH range: 6 - 7; dH range: 2 - 25
Distribution:  Asia: originally occurring in the Mekong in Cambodia and Viet Nam and Chao Phraya basins (Ref. 43281). Introduced in the Mekong basin in Thailand and expected in Laos (Ref. 43281). A popular aquarium species which appeared in Colombia because of escapes from aquarium rearing facilities (Ref. 1739).
Diagnosis:  Dorsal spines (total): 3-4. Trichopodus microlepis is distinguished from other congeners by having the following characters: body silvery or grey without distinct markings; dorsal fin with 3-4 spines; 57-65 scales on lateral line; 34-40 transverse scales; and length of dorsal-fin base 14.5-17.3% SL (Ref. 97359).
Biology:  Found in ponds and swamps (Ref. 43281). Occurs in shallow sluggish or standing water habitats with a lot of aquatic vegetation. Common in the floodplain of the lower Mekong. Feeds on zooplankton, crustaceans and aquatic insects (Ref. 12693). An air-breathing species (Ref. 118402). Marketed fresh (Ref. 12693).
IUCN Red List Status: Least Concern (LC); Date assessed: 04 March 2011 Ref. (130435)
Threat to humans:  harmless
Country info:  Naturally found in the Chao Phraya basin (Ref. 43281). Introduced in the Mekong basin (Ref. 43281). Recorded also from the Maeklong basin (Ref. 26336); also from Bangkok, Tha Chin river (Samut Sakhon), Mepoon (Phrae), Phra Nakhon Si Ayutthaya, Songkhla and Nakhon Sawan (Ref. 37773). Reared in captivity for the ornamental fish trade (Ref. 6459). Also Ref. 9648, 1739, 36654, 94476.


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