The otocinclus (Otocinclus vittatus) is a peaceful fish that grows to about 1.75 inches and spends its time near the bottom. Keep at least 5 together, in a tank of 20 gallons or more, at 72–79°F and pH 6–7.5.
20 galsmallest tank
1.75″adult size
72–79°Ftemperature
6–7.5pH
5+group size
Peacefultemperament
Good tankmates
Avoid
- ✕Paradise fish: Paradise fish is aggressive and best kept alone.
- ✕Angelfish: Angelfish grows big enough to eat Otocinclus.
- ✕Convict cichlid: Convict cichlid is aggressive and best kept alone.
- ✕Oscar: Oscar is aggressive and best kept alone.
- ✕Pea puffer: Pea puffer is aggressive and best kept alone.
From TankCoach's own species data: common hobby guidance for adults, rounded. Individual fish vary. Not veterinary advice.