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Otocinclus Catfish

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Otocinclus "Oto" Catfish

Ottocinclus "Oto" Catfish, also called dwarf otos, are very small and peaceful catfish that have gained in popularity in recent years. They have olive green/silver bodies through which a thick black stripe that runs the tail to the eye. They are perfect catfish for planted aquariums as they will constantly graze on algae and, due to their small size, they will not eat or destroy plants. 

Care Guide for Oto Catfish

Otocinclus are small catfish in the Loricariidae family and are native to South America. In nature, these fish are often found in slow to moderate flowing small streams or along the shores of large rivers, clinging with their suckermouths to plants, rocks, driftwood, or substrate and feeding on algae or biofilm. They will tolerate a wide range of aquarium conditions and are particularly suited for community tanks because of their small size and peaceful temperament. They are social fish and must be kept in groups of at least 6 individuals and preferably more.

Max Size:   1.5 inches
Water:   72 - 82 F; pH 6.5 - 7.5
Difficulty:   Easy
Living Zone:   Bottom
Temperament:   Peaceful and Social

Otocinclus Catfish should be kept in planted tanks and provided with numerous hiding and resting places. Adding driftwood and rocks, as well as botanicals such as Catappa leaves or Maoni Pods, is also highly recommended. They are very active and "busy" grazing on algae throughout the day.   

Otocinclus can be kept with many other peaceful fishes, including tetras, discus, dwarf cichlids, corydoras catfish, plecos, and many other community fish. They are predominantly herbivorous and will feed on most algae. Their algae diet should be supplemented with algae wafers, lettuce or spinach leaves, peas, and cucumber.

Aquarium Fish at Modern Aquarium

You can feel confident about purchasing live aquarium fish from Modern Aquarium because your purchase is backed by our Live Arrival Guarantee and 7-Day Acclimation GuaranteeAt Modern Aquarium, we strive to bring you healthy, beautiful fish in every order. While the photos on our website are just examples of what you will receive, we take great care of our fish and inspect each fish in person before shipping it to you. If you have any questions about what to expect from your order, or how to take care of your fish, reach out to us any time!

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