The Otocinclus Catfish, often called Oto or Dwarf Sucker Catfish, is one of the most beloved algae-eating fish in the aquarium hobby. Known for its tiny size, peaceful personality, and incredible cleaning abilities, this fish is a favourite among aquascapers and community tank keepers. Otos spend their day gently grazing on algae, clinging to leaves, glass, and décor with their miniature sucker mouths. Their calm behaviour, social nature, and plant-friendly habits make them a perfect choice for hobbyists who want a natural, effective, and adorable cleaner fish that won’t disturb plants or tank mates. Ideal for well-maintained aquariums, Otocinclus add charm, activity, and balance to any freshwater setup.
Best Natural Algae Eaters
Otocinclus (Otos) are one of the most efficient algae-eating fish, especially soft green algae. They keep your glass, plants, and decorations clean without harming plants.
Peaceful & Community-Safe
They are extremely gentle and won’t bother any tank mates. Perfect for peaceful nano or community aquariums.
Great for Planted Tanks
They thrive in planted setups and help maintain algae balance, making them ideal for aquascaped tanks.
 Very Small & Cute
At only 3–4 cm, they’re perfect for smaller tanks and add adorable activity on leaves and surfaces.


















