Otocinclus - 3cm

Species Profile

• Scientific Name: Otocinclus spp.
• Common Name: Oto Catfish / Dwarf Suckerfish / Otos
• Adult Size: 3–5 cm (1.2–2 inches)
• Life Expectancy: 3–5 years
• Habitat: Native to slow-moving streams and rivers in South America (Amazon and Paraná basins). Found in areas with dense vegetation and abundant algae growth.

Tank Requirements

• Minimum Tank Size: 40 liters (10 gallons) for a small group
• Ideal Temperature: 22–28°C (72–82°F)
• pH Range: 6.0–7.5
• Water Hardness: 3–15 dGH
• Temperament: Peaceful and social; best kept in groups of 6 or more. Safe with small, non-aggressive community fish.

Diet (Herbivorous)
Diet should include:

• Natural algae (primary food source)

• Algae wafers and spirulina-based pellets

• Blanched vegetables such as zucchini, cucumber, and spinach

Avoid overfeeding; they prefer constant grazing on surfaces.

Appearance
Distinctive Features:

• Small, slender body with a silvery color and dark lateral stripe from head to tail

• Sucker-like mouth adapted for clinging to surfaces and scraping algae

• Transparent fins and gentle movements

• Known for cleaning algae without damaging plants