Otocinclus Catfish Return to Aquarium page
Scientific Name Otocinclus sp. (some 13 species total)
Common Name Otocinclus, Otto, Oto, Pygmy Suckermouth Catfish, Dwarf Sucker
Origin Tropical South America
Adult Size 1 - 2 inches
Temperature 70 - 80°F
pH 5.5 - 7.5
Hardness Not critical
Notes A great algae cleaner, will remove algae from leaves without damaging the plants. Best in groups of at least three. A good community fish, not at all aggressive towards tank mates. For some reason they have a fairly high chance of dying shortly after being added to a tank, but once they get past the crucial first week and adjust to their new home, they generally do quite well. A good rule of thumb seems to be to buy twice as many as you think you need, since half of them will probably die.
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