Chocolate frogmouth catfish (Chaca bankanensis) care guide

Group
Freshwater fish
Other names
Banka angler catfish
Family
Chacidae (squarehead or angler catfishes)
Origin
South-east Asia: Malaysia and Indonesia, including Borneo and Bangka (the type locality).
Water
freshwater
Maximum size
20 cm
Temperature
22–24°C
pH
6–8
Hardness
3–18 dGH (estimated)
Minimum tank
100 litres
Care level
expert
Temperament
semi_aggressive

Care

A flat, wide-mouthed ambush hunter that lies motionless among leaf litter. It moves very little, so a tank of about 100 litres is enough for one adult; this is our estimate. PlanetCatfish suggests a sandy substrate, leaf litter, Java moss or low-growing plants and dim lighting. Water at 22–24 °C and pH 6–8 suits it. It is known to lower the pH of its tank quickly, so test the water and make regular water changes. Safety: it is regarded as poisonous in its native area; handle it with care and avoid touching it with bare hands. Sexing: males are larger and longer; females are shorter and more robust. It is listed as Near Threatened on the IUCN Red List (assessed 2019). Sources: PlanetCatfish (planetcatfish.com/common/species.php?speciesid=79). Checked October 2026.

Diet

An ambush predator that lies still and swallows passing fish. Be prepared to supply live fish regularly; some young fish learn to take pellets once settled, but live prey remains the reliable food. Feed sparingly, as it eats large meals.

Breeding

Not reported in the aquarium.

Compatibility and tank mates

Best in a species tank. It eats small and bottom-living fish, and anything that fits in its very large mouth.

Last updated 5 October 2026. Community-edited care guide on Aquatic-Auctions.

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