Fish Wiki

All fish / Siluridae

Poormans Glass Catfish

Kryptopterus macrocephalus

Also known as poor man's glass catfish, poormans glass catfish, striped glass catfish, bigheaded glass catfish, glass catfish, lais, クリプトプテルス・マクロケファルス, lais kaca, 大头玻璃猫

Poormans Glass Catfish
Photo: Zakqary Roy, CC BY 4.0, via iNaturalist
Tankmates, for sale near youIdentify a fish from a photo

A slim, semi-transparent catfish with a tinted, less see-through body than the true glass catfish and a dark line along the flank. It hovers in mid-water among plants and suits calm, soft-water community tanks with shy companions.

Care at a glance

Care level
Moderate
Temperament
Peaceful
Adult size
10 cm
Temperature
22 to 28 °C
pH
5 to 7
Smallest tank
100 litres
Keep as
Group of 6 or more
Diet
Carnivore: small live and frozen foods such as bloodworm, daphnia and brine shrimp, plus fine sinking pellets
Swims
Middle of the tank
Lifespan
5 to 8 years
Water
Freshwater
Wild range
Southeast Asia: Malay Peninsula, Sumatra and Borneo

Breeding

Not reliably bred in aquariums; trade specimens are wild caught from peat swamp and blackwater habitats.

Good to know

Becomes stressed and hides if kept alone or with boisterous fish, and is sensitive to poor water quality. Often confused with Kryptopterus vitreolus, which is clearer and smaller.