Remarks: Common Otos (Otocinclus macrospilus) are small, algae-eating fish from South America. They rarely exceed 1.5" in length and prefer to live in high numbers. It is recommended to keep them in a school larger than 10, but fewer numbers are okay in small tanks. They do a remarkable job cleaning leaves, wood, rocks, and glass of green and brown algae, and there are some reports of this species eating black beard algae as well. 

Scientific Name: Otocinclus macrospilus

Common Name: Common Oto

Max Size: 1.5"

pH: 6.0-7.5

Hardness: Moderate

Temperature: 75-82°

Aggressiveness: Peaceful

Region of Origin: South America

Captive Bred or Wild: Wild

Diet: Frozen or live meats, occasional vegetables, algae

Compatibility: Plecos, catfish, schooling fish, livebearers, rainbowfish.

Tank Mate Options:

• Red Shoulder Severum
• Rummynose Tetra
• Geophagus sp. Red Head Tapajos

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