Dwarf Marbled Catfish

Microglanis poecilus is a strict carnivore and should be offered high-protein sinking foods such as frozen bloodworms, tubifex, brine shrimp, daphnia, and small pieces of prawn or mussel, along with quality sinking carnivore pellets or wafers. Feeding should be done after lights-out to align with its nocturnal activity pattern and ensure it actually competes for food. Avoid plant-based staple foods; a varied meaty diet is essential for long-term health and coloration.

This species is peaceful toward tankmates too large to be swallowed but is an unambiguous predator — it will readily consume small fish (nano species, fry, small tetras) and any dwarf shrimp that venture near its hiding spot, often overnight without any visible aggression beforehand. During the day it remains almost entirely hidden inside caves, driftwood hollows, or PVC tubes, emerging primarily after the aquarium lights go off. Multiple individuals can be kept together if the tank provides ample separate hiding territories, though mild competition for prime caves may occur.

Breeding Microglanis poecilus in captivity is rarely documented and considered difficult; conditioning with abundant live and frozen foods and a slight drop in temperature to simulate seasonal change may help trigger spawning. The species is believed to be a cave-spawner, with the male guarding the egg clutch, similar to other pseudopimelodids. Raising fry requires very fine live foods such as microworms or baby brine shrimp nauplii, and separating adults from eggs or fry is advisable to prevent predation.