Otocinclus
Otocinclus vittatus
Check OtocinclusOtocinclus, affectionately called "Otos," are tiny suckermouth catfish that are unmatched at consuming soft green and brown algae from glass, leaves, and decorations. These gentle fish should be kept in groups of at least four and do best in mature tanks with established biofilm. They are peaceful, unobtrusive, and perfect companions for shrimp and small community fish.
Tank Size
60 liters
Temperament
Peaceful
Diet
Herbivore — algae, biofilm, algae wafers, blanched zucchini
Lifespan
3-5 years
Water Temp
21-26°C
pH Range
6.0-7.5
Recommended Products
Everything you need to create the perfect tank for your Otocinclus.
Accessories
Seachem Prime Water Conditioner
Otocinclus are among the most sensitive fish in the hobby, frequently arriving in poor condition from collection. Prime detoxifies chlorine, ammonia, and heavy metals — use double dose when acclimating new Otos to buffer any stress.
Seachem Stability Nitrifying Bacteria
A well-established, mature aquarium is the single most important factor for keeping Otocinclus alive. Stability rapidly seeds beneficial bacteria to complete the nitrogen cycle, ensuring the pristine, zero-ammonia water Otos require.
Food
Hikari Algae Wafers
Spirulina-rich wafers that provide essential supplemental nutrition for Otocinclus when tank algae runs low. Leave a small piece near the group in the evening. Regular supplementation is critical — starvation is the most common cause of death in Otos.
Hikari Tropical Sinking Wafers
Plant-based sinking wafers that provide additional nutrition for Otos. Their firm texture holds together in water, allowing Otos to rasp on them throughout the day at their preferred slow pace.