Decorated Catfish Care Guide - Aquarium Setup, Diet & Breeding

Decorated Catfish, Synodontis decorus, are striking African catfish recognised for their dark brown to grey body, pale markings and tall, sail-like dorsal fin. Their elongated shape, prominent fin filaments and whisker-like barbels give them a distinctive appearance that makes them a centrepiece among larger freshwater fish.

Decorated Catfish are native to central Africa, especially the Congo River Basin in the Democratic Republic of the Congo. They inhabit flowing freshwater environments with rocky areas, submerged wood and sheltered crevices.

A single adult should have an aquarium of at least 300 litres, with a footprint around 150 cm long by 50 cm wide; larger groups require substantially more space and hiding places. Use smooth sand or fine, rounded gravel to protect the barbels, together with sturdy driftwood, rockwork, caves and robust plants attached securely to the decor. Leave open swimming space while providing several shaded retreats, and use a tight-fitting cover because Synodontis can jump.

Up to about 30 cm (12 in) in total length. Females are often slightly larger and fuller-bodied than males, although individual size varies.

Decorated Catfish are omnivorous opportunists and should receive a varied diet of sinking carnivore pellets, catfish tablets, insect-based foods, prawns, earthworms and other meaty frozen or live foods. They also benefit from occasional vegetable ingredients and should be fed after the aquarium lights dim, when they are naturally more active. Remove uneaten food promptly to protect water quality.

Suitable companions include robust African tetras, larger barbs, peaceful to moderately assertive cichlids and other similarly sized riverine fish. Avoid very small fish that may be swallowed, fin-nipping species and highly aggressive cichlids. Decorated Catfish can be territorial toward other bottom-dwellers, particularly in cramped aquariums, although compatible groups may be kept in a spacious, well-structured setup.

Decorated Catfish are difficult to breed in home aquariums, and routine captive spawning is uncommon. They are cave-spawning fish that require excellent conditioning, compatible adults and carefully managed water conditions. Commercial breeding has generally relied on seasonal stimulation or hormone-assisted techniques, so aquarists should not expect regular natural spawning in a standard community aquarium.

Females are usually broader through the body, particularly when mature, while males tend to be slimmer. Reliable sexing can be difficult by appearance alone; examination of the genital papilla is more dependable for experienced keepers.