Otocinclus Catfish (Algae Eating Dwarf Sucker)

Otocinclus Catfish / Oto (Otocinclus spp.)

Appearance: A small, torpedo-shaped armored catfish with a suckermouth, olive-to-gray body, a bold dark stripe from snout to tail, and a lighter belly. They reach 1.5–2 inches and live 3–5 years.

Care: Intermediate. Add them only to a fully cycled tank that’s been running several months with visible soft algae; they’re sensitive to ammonia, nitrite, and sudden changes (pH 6.0–7.5, 72–79°F). Keep 6 or more with broad leaves, wood, and stones to graze, plus good oxygenation.

What you’ll receive: Healthy fish from our tanks. Our Live Arrival Guarantee covers fish shipped UPS 2nd Day Air or FedEx 2-Day. Most of our fish shipped USPS Priority arrive happy and healthy too.