Otocinclus

Otocinclus Catfish are small, peaceful algae-eating fish highly valued for their ability to clean soft algae from plants, glass, and décor without damaging delicate aquascapes. Native to South America, these tiny catfish are ideal for planted and community aquariums. They are social fish that do best in groups and are especially popular for maintaining clean, natural-looking tanks.

Quick Care Guide

Temperament
Very peaceful and social. Best kept in groups of 4–6 or more. Excellent with other small, non-aggressive community fish.

Diet
Herbivore (algae grazer).
Recommended foods include:

• Natural algae and biofilm
• Algae wafers
• Blanched vegetables (zucchini, spinach)
• Occasional soft plant matter

Water Parameters

• Temperature: 72–79°F
• pH: 6.0–7.5
• Ammonia/Nitrite: 0 ppm
• Nitrate: <20 ppm

Minimum Tank Size
10–20 gallons

Reef Safe
N/A (Freshwater species)

Adult Size
1–2 inches