South American Bumblebee Catfish Care Guide - Habitat, Diet & Breeding

The South American Bumblebee Catfish is a small, distinctive bottom-dwelling catfish with a broad head, rounded body and a striking pattern of dark brown to black bands across a yellowish, tan or cream background. Its compact shape and bold markings give it the bumblebee-like appearance that inspired its common name.

This is a nocturnal and generally retiring species. It spends much of the day tucked beneath wood, among stones or inside cavities, becoming more active after the aquarium lights go out. Sensitive barbels around the mouth help it locate food in dim conditions and in sediment-rich water.

In the wild, it inhabits shallow freshwater environments with flowing or well-oxygenated water, a soft bottom and plenty of submerged cover. Its appearance provides useful camouflage among leaf litter, roots, stones and shaded stream debris.

Despite its small size, it is an opportunistic predator rather than a dedicated algae-eater. It can swallow surprisingly small tankmates, while larger fish may intimidate or outcompete it. Individual personalities vary, with some specimens becoming confident and visible once they settle into a suitable aquarium.

Microglanis iheringi is native to southeastern Brazil in South America. It occurs in freshwater streams and smaller river environments associated with the coastal and Atlantic Forest drainage systems.

A single South American Bumblebee Catfish should be given an aquarium of at least 75 litres, with a footprint of around 60 by 30 cm or larger. Use a fine sand or smooth-gravel substrate so its sensitive barbels are not damaged, together with driftwood, rounded stones, caves, short lengths of pipe and broad-leaved plants that create shaded retreats. Moderate water movement, good oxygenation, subdued lighting and secure cover are valuable, while open areas should remain available for nocturnal foraging.

Up to about 8 cm (3.1 inches) in total length. Females may become slightly deeper-bodied than males, but the overall size difference is modest.

South American Bumblebee Catfish are carnivorous and should receive a varied diet of sinking carnivore pellets, catfish tablets, bloodworms, brine shrimp, chopped earthworms and other suitably sized frozen or live foods. Feed after dusk or use sinking foods that reach the bottom, and remove uneaten portions because this species is not an effective aquarium cleaner or algae grazer.

Suitable tankmates include peaceful, similarly sized South American fish such as small tetras, pencilfish, peaceful rasboras and other calm community species that occupy the middle or upper levels. Choose tankmates too large to fit in the catfish's mouth, and avoid fin-nipping or highly boisterous fish. It should not be housed with very small shrimp, tiny fry or delicate nano fish that may be viewed as prey, nor with aggressive bottom-dwellers that compete for caves and food.

South American Bumblebee Catfish are cave-spawning fish, although successful breeding in home aquariums is uncommon. A compatible pair may spawn in a secluded ceramic tube, rock cave or similar shelter, with the male often guarding the eggs. Provide excellent water quality, plentiful live or frozen foods and a gentle seasonal variation in temperature and water level; the parents should be monitored because eggs and fry can be vulnerable to disturbance or predation.

Sexual differences are subtle and difficult to confirm in young fish. Mature females are usually fuller through the abdomen, particularly when carrying eggs, while males tend to remain slimmer and may have a more tapered body profile.