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Dwarf Suckermouth Catfish, Oto Catfish Aquarium Care Guide

Otocinclus

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Keeping Dwarf Suckermouth Catfish, Oto Catfish in an aquarium requires the right conditions.

Aquarium Information

  • Care level: intermediate
  • Temperament: peaceful
  • Diet: herbivore
  • Minimum tank size: 38 liters (10 gallons) for a small group
  • Compatibility: Excellent with most small, peaceful community fish such as tetras, rasboras, dwarf cichlids, and other small catfish. Avoid housing with large, aggressive, or predatory fish that might view them as prey.
  • Special requirements: Otocinclus thrive in well-established aquariums with mature filtration and stable water parameters. They require plenty of natural algae growth, driftwood, and live plants for grazing and hiding. Supplemental feeding with blanched vegetables (zucchini, cucumber, spinach) and algae wafers is often necessary, especially in tanks with limited natural algae. They are sensitive to sudden changes in water chemistry and require excellent water quality. Keeping them in groups of 6 or more is crucial for their well-being, as they are schooling fish.

Water parameters

Temperature
21-26°C (70-79°F)
pH level
6.0-7.5
Hardness
2-15 dGH

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