dwarf otocinclus (Otocinclus vittatus)

Family: Loricariidae

A peaceful algivore loricariidae from the Amazon basin of South America — moderate care.

Care parameters

Water temperature
20–25 °C
pH
6–7.5
GH hardness
2–18 dGH
Adult length
2.3–3.3 cm
Minimum tank
33 L
Water layer
Bottom; rests and forages low; keep 6+
Difficulty
Moderate
Temperament
Peaceful
Origin
南美洲亚马逊流域

Species overview

Otocinclus vittatus is a Loricariidae. In the aquarium it stays peaceful. Plan on 2.3–3.3 cm of adult fish at 20–25 °C. In a community tank it pairs well with Amur False Gudgeon, Acanthorhodeus chankaensis.

Native biotope

Habitat
Clear streams, rivers and still waters
Flow
Moderate flow
Dissolved O₂
Average oxygen needs

Aquascape & hardware

Substrate
Smooth gravel and sand with open floor space
Hardscape
Driftwood, water-worn stones and shelters that mimic the native biotope
Plants
Hardy plants on hardscape; keep the floor open

Temperament, diet & tankmates

Schooling
Keep 6+; larger groups settle better
Diet
Algivore; quality prepared foods with variety
Recommended tankmates
  • Amur False Gudgeon — Similar size and water needs
  • Acanthorhodeus chankaensis — Similar size and water needs
  • Striped Bitterling — Similar size and water needs
Avoid keeping with
  • Large aggressive cichlids — Bullying and injury risk
  • Known fin nippers — Constant stress and fin damage

Breeding & notes

Sexual dimorphism
Males are typically slimmer and more intensely colored; females fuller-bodied
Breeding method
Spawning; condition with rich foods and simulate seasonal changes

Frequently asked questions

Is dwarf otocinclus easy to keep?

Difficulty: moderate. Peaceful. Keep 6+; larger groups settle better.

What temperature and water chemistry does dwarf otocinclus need?

Set the heater to 20–25 °C and avoid swings. pH 6–7.5, GH 2–18 dGH suit it.

How big does dwarf otocinclus get, and what tank size?

Full size is 2.3–3.3 cm. Minimum tank: 33 L, with open swimming space along its bottom; rests and forages low; keep 6+ habits.

What does dwarf otocinclus eat?

Algivore; quality prepared foods with variety. It forages naturally over smooth gravel and sand with open floor space, so let some food reach the bottom.

Can dwarf otocinclus live with other fish?

Yes, with care. Peaceful — pair it with Amur False Gudgeon — Similar size and water needs, Acanthorhodeus chankaensis — Similar size and water needs, Striped Bitterling — Similar size and water needs and skip Large aggressive cichlids — Bullying and injury risk, Known fin nippers — Constant stress and fin damage.

Where does dwarf otocinclus come from?

Native to 南美洲亚马逊流域, where it lives in clear streams, rivers and still waters. Moderate flow; Average oxygen needs.

How does dwarf otocinclus breed?

In the aquarium: spawning; condition with rich foods and simulate seasonal changes. Males are typically slimmer and more intensely colored; females fuller-bodied.