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Giant Otocinclus Catfish

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Giant Otocinclus "Oto" Catfish

Giant Ottocinclus "Oto" Catfish, also known by its scientific name Hypoptompoma gulare, is a medium size and peaceful catfish. This fish is not, in fact, a giant size. Rather, this oto's moniker - giant - originates from the size comparison to its much smaller cousin Oto. Like its smaller cousin, Giant Oto has an olive green/brown patterened body with a black stripe running from the tail to the eye. They are rare, highly desirable and perfect catfish for planted aquariums as they will constantly graze on algae. 

Care Guide for Giant Oto Catfish

Otocinclus are 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 should be kept in groups.

Max Size:   3 - 4 inches
Water:   72 - 82 F; pH 6.5 - 7.5
Difficulty:   Easy
Living Zone:   Bottom
Temperament:   Peaceful and Social

Giant Oto can 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 are constantly grazing on algae throughout the day.  

Otocinclus have peaceful disposition and can be kept with many other peaceful fishes, including tetras, 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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