An Otocinclus Catfish is an amazing little scavenger for freshwater aquariums. Otocinclus Catfish may also be sold as: Otos, Oto Catfish, Otto Cats, Ottos, Dwarf Suckermouths, Dwarf Oto, Dwarf Ottos, Dwarf Suckers, Algae Scrapers, Macrotocinclus affinis and Otocinclus affinis. Although Otocinclus Catfish are algae eaters, they should not be confused with other similar looking fish also sold as “algae eaters” including: Chinese Algae Eaters, Siamese Algae Eaters and Siamese Flying Fox. Otocinclus also come in an a more rare variety: The Zebra Otocinclus. The Zebra Otocinclus is darker in color and has a more camouflaged look than the more common Oto Catfish.

Otocinclus Catfish Care: Size, Food & Water

It is often said that Otocinclus Catfish care is relatively easy. But while care should be easy and straight foreword, keeping Oto Catfish can be tricky because they a delicate freshwater aquarium fish. Otto Cats often die shortly after being added to an aquarium, even after appearing to be healthy, active and feeding well during the first few days. That said, some can live over one year and grow in size…under the right conditions and with a little luck.