Otocinclus Catfish - Otocinclus
Otocinclus Catfish (Otocinclus spp.)
The Gentle Algae-Eating Specialist
Looking for a peaceful and hardworking addition to your freshwater tank? The Otocinclus Catfish, affectionately known as the “Oto,” is a small, social algae eater that plays an essential role in keeping your aquarium clean and thriving.
Native to the streams and rivers of South America, Otocinclus are known for their gentle nature, tight schooling behavior, and tireless grazing on soft algae. They are an ideal choice for community tanks, especially in planted aquariums where their small size and non-destructive habits are a perfect match.
Key Features:
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Excellent algae cleaner—especially fond of soft green algae
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Peaceful and social—best kept in groups
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Perfect for nano and planted tanks
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Safe with shrimp and other peaceful tankmates
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Active and entertaining to watch
Care Notes:
Otocinclus thrive in well-maintained aquariums with stable water parameters and plenty of natural surfaces to graze on. Supplement their diet with algae wafers, blanched veggies, and fresh greens if natural algae levels are low. Ensure good oxygenation and gentle flow, and always acclimate them carefully, as they are sensitive to rapid changes in water quality.
Bring balance to your aquascape with the charming and diligent Otocinclus Catfish—a must-have for any freshwater cleanup crew!
The Otocinclus Catfish, commonly known as Otos or Oto Cat. These little Loricariidae cats are one of the smallest you can find in the hobby and does a fantastic job cleaning algae in an aquarium. Even aquascaping experts love the cleaning ability of the Oto as they are safe for planted aquariums.
Size is about 3/4" to 1".
Max size: 2"
Minimum tank: 10gal
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Oto cats
They arrived healthy, love watching them explore the tank.
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busy cleaners!
They are always busy cleaning! They are so fun to watch, especially when they are in a large group.
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Awesome little catfish
Got 5 for my 10gl tank. They look great and happy. Awesome little guys to join Amano and Nerites as cleaning crew.
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Otocinclus Catfish
I bought several and they arrived promptly and in good health.
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Otocinclus Catfish
I bought several and they arrived promptly and in good health.
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Otocatfish
Arrived fast and was we'll packed.All fish are alive and thriving
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Healthy
All alive and health!!!!!
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Otocinclus
All nine fish arrived alive and appear to be healthy. Shipment was particularly quick given the backlog many companies are experiencing.
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Great!:)
They arrived on time, alive and all healthy! I definitely recommend this seller and will be buying from the again in the future.
