Otocinclus

Otocinclus vittatus

Also known as: Oto, Dwarf Sucker

A peaceful little algae-grazer — but only safe in a mature tank with steady food.

Water

Freshwater

Temperature

72–79°F

pH

6–7.5

Hardness

2–15 dGH

Max size

1.6 in

Min tank

10 gal

Temperament

Peaceful

Social

Schooling (6+)

Swim level

All

Diet

Herbivore

Care level

Intermediate

Lifespan

3-5 years

Breeding

Egg-depositor

Suitability

Common

Origin

South America

Otos eat soft algae and biofilm and starve in clean new tanks, so add them only once a tank is established and supplement with blanched veg. Always keep a group.