All species

Otocinclus

Otocinclus vittatus

Also called oto, otto, ottos, dwarf sucker.

Only for a mature tank. They need real algae and biofilm.

What it needs

Grows to
4 cm
Smallest sensible tank
60 L, at least 60 cm long
Temperature
22 to 27 °C
pH
6 to 7.5
Hardness
2 to 15 dGH
Kept in
groups of 6 or more
Temperament
peaceful
Eats
herbivore
Swims
near the bottom
How hard
moderate

These are the figures the stocking advice is built on. Make a room and it will tell you whether otocinclus fit the tank you have.