Mystus leucophasis
Mystus leucophasis, commonly known as the Bengal catfish, is a small, slender freshwater catfish reaching up to 25 cm. It is prized by anglers for its nocturnal activity and the challenge of locating these shy bottom‑dwelling fish in vegetated waterways.
Family
Bagridae
Max Size
25 cm
Habitat
freshwater
Climate
tropical
Best Season
Year‑round, with heightened activity during the monsoon months (June‑September)
Best Time
Nighttime to early dawn
No distribution map available
Irrawaddy River – Mandalay Stretch
MyanmarLarge, slow‑moving sections of the Irrawaddy host abundant Mystus leucophasis, especially around submerged sandbars and river bends.
Best: Nov–Feb
Chao Phraya River – Bangkok Lower Reach
ThailandUrban stretch with plenty of backwaters and tributary canals; fish are habituated to light and bait, making them easy to target.
Best: Dec–Feb
Sundarbans Mangrove Estuary
BangladeshBrackish mangrove channels provide ideal nocturnal hunting grounds for the catfish, especially during the dry season.
Best: Oct–Jan
Tonle Sap Lake – Northern Basin
CambodiaSeasonal floodplain creates extensive shallow habitats where Mystus leucophasis congregate in large numbers.
Best: Jun–Aug
Upper Mekong – Near Luang Prabang
LaosRemote river canyons with clear water and rocky substrate; the species is present but requires local guides to locate.
Best: Nov–Mar
Khao Sok River – Cheow Lan Reservoir Edge
ThailandCalm reservoir edges with abundant submerged timber; the catfish readily bite on live shrimp or small minnows.
Best: Jan–Apr
Best bait: Worms, shrimp, small live fish, or diced baitfish