Otocinclus (Otocinclus vestís)

Otocinclus Care Guide with Aquarium Size Requirement:

1. Species Overview:

• Otocinclus, commonly known as Otos or Dwarf Suckermouth Catfish, are small freshwater catfish native to South America. They are popular for their algae-eating habits and peaceful nature.

2. Aquarium Size:

• Provide a tank with a minimum size of 20 gallons for a small group of Otocinclus. These catfish are social, and keeping them in groups of at least three is recommended.
• Ensure the tank has stable water parameters and is well-established, as they thrive in established aquariums.

3. Water Parameters:

• Maintain a stable water temperature between 72°F to 78°F (22°C to 26°C).
• Aim for a slightly acidic to neutral pH level, ideally between 6.5 and 7.5.
• Keep the water hardness in the soft to moderate range, around 5 to 15 dGH.

4. Size of the Fish:

• Otocinclus typically grow to a size of about 1.5 to 2 inches (3.8 to 5 centimeters).

5. Tank Decor:

• Set up the aquarium with plenty of live plants, as Otocinclus thrive in well-planted environments. Use driftwood and rocks to create hiding spots.
• Ensure there are smooth surfaces for them to graze on algae.

6. Diet:

• Otocinclus are herbivores and primarily feed on algae. However, supplement their diet with algae wafers, blanched vegetables (such as zucchini or cucumber), and specialized sinking pellets.
• Ensure a consistent and varied diet to meet their nutritional needs.

7. Behavior:

• Otocinclus are peaceful and shoaling fish. Keep them in groups to promote natural behaviors and reduce stress.
• They are active during the day but may appreciate some hiding spots.

8. Tank Mates:

• Choose tank mates that are small, peaceful, and won't outcompete Otocinclus for food. Suitable companions include small tetras, rasboras, and other peaceful community fish.
• Avoid aggressive or larger species that may stress or harm them.

9. Tank Maintenance:

• Regular water changes of 20% every two weeks are crucial for maintaining good water quality.
• Use a gentle filtration system suitable for the tank size to provide adequate water flow.

10. Compatibility with Planted Tanks:

• Otocinclus are excellent for planted tanks as they help control algae growth. However, ensure there is enough algae or provide supplemental food to meet their dietary needs.

By following these care guidelines and providing an appropriately sized and well-maintained aquarium, Otocinclus can thrive, contributing to a healthy and algae-free aquatic environment.