Otocinclus Catfish Care Guide

Otocinclus affinis

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Bioload Score

1600

PeacefulModerate
Max Size
5 cm / 2"
Temperature
21–26°C (70–79°F)
pH Range
6 – 7.5
Min Tank Size
40L (11 gal)
Min Group Size
6 fish
Tank Level
Bottom
Origin
South America
Temperament
Peaceful
Difficulty
Moderate
Breeding Difficulty
Moderate

Diet

Primarily grazes on algae and aufwuchs, supplemented by vegetable matter and sinking foods.

Community Compatibility

Suitable tankmates include small peaceful tetras, rasboras, pencilfish, Corydoras, small livebearers and other gentle community species.

Good to Know

Otocinclus Catfish are often sold as Otocinclus affinis, although that name is frequently applied in the aquarium trade to several very similar Otocinclus species.

Gender Differences

Females are generally broader-bodied and slightly larger than males, especially when viewed from above.

Stock Otocinclus Catfish in Your Tank

Use our free stocking calculator to see if Otocinclus Catfish fits your aquarium