Ottocinclus catfish, also known as Ottos, are cherished in freshwater aquariums for their algae-eating prowess and gentle disposition. Here are key details about Ottocinclus catfish:

Appearance

• Color: Ottos are typically adorned with a sleek, silver body, sometimes featuring a subtle pattern of horizontal black stripes.
• Size: They grow to a modest length of about 1.5 to 2 inches (3.8 to 5 cm).
• Distinctive Features: Known for their flattened body shape and underslung mouth adapted for grazing on algae-covered surfaces.

Habitat

• Tank Requirements: Ottocinclus thrive in well-established aquariums with ample hiding places and a soft substrate.
• Water Parameters: They prefer stable water conditions with slightly acidic to neutral pH (6.0-7.5), soft to moderately hard water, and temperatures ranging from 72-82°F (22-28°C).

Behavior

• Temperament: Ottos are peaceful and best kept in groups to ensure their comfort and activity.
• Social Structure: They are schooling fish and should ideally be kept in groups of at least 6 individuals.

Diet

• Feeding: Ottos are primarily herbivores and excel at consuming algae growth in the aquarium. Supplement their diet with algae wafers, blanched vegetables like zucchini or cucumber, and occasional small live or frozen foods.

Care Tips

• Water Quality: Regular water changes and adequate filtration are essential for Ottocinclus health.
• Tank Mates: They are compatible with other peaceful freshwater species like tetras, rasboras, and small Corydoras catfish. Avoid aggressive tank mates or species known for fin-nipping behavior