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How to look after
Otocinclus affinis
Oto, Dwarf sucker catfish, Midget suckermouth catfish
Steindachner, 1877

(Other members of the genus Otocinclus)

ADULT SIZE: 5 cm

WATER CONDITIONS: Not critical

TEMPERATURE RANGE: 20-26 C

FOOD: Feed Otocinclus affinis a predominantly vegetarian diet

DISTRIBUTION: This species comes from Brazil

5 OTOCINCLUS Great little algae eaters! moss java shrimp guppy

Current price: $20.00
buy it now
Time left: 21d 17h 28m
School of Tank-Raised Otocinclus Catfish (1 to 2+ inches) by Aquatic Arts

Current price: $21.94
buy it now
Time left: 11d 7h 33m

AQUARIUM CARE: These very small catfish are an excellent addition to the aquarium. They are fairly hardy and will do a good job keeping the tank clear of unwanted algae. If there is no algae, some vegetable matter is greatfully received: cucumber, lettuce, blanched spinach etc.

Otos make good community fish, obviously avoiding too large or predatory species. Clean water is important, maintain water quality.

BREEDING: Substrate spawner, though rarely achieved in the aquarium

Have you bred Otocinclus affinis? Why not fill in a breeding questionaire?, or examine existing Otocinclus affinis breeding reports








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Fishkeeping Facts and Tips

Too many fish? Overstocked tanks stress the fish in many ways: competition for food and space, bullying from other fish, deterioration of water quality and increased concentration of disease vectors. A lightly stocked tank will always be easier to care for, with more stable water quality


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