Can Otocinclus Catfish Live With Pygmy Corydoras?
Otocinclus Catfish and Pygmy Corydoras are compatible. Temperature overlap 72–79°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Otocinclus Catfish | Pygmy Corydoras | Overlap |
|---|---|---|---|
| Temperature | 72–79°F | 72–79°F | 72–79°F ✓ |
| pH Range | 6–7.5 | 6–7.5 | 6–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2" | 1" | Similar ✓ |
| Min Tank Size | 10 gal | 10 gal | 20 gal minimum together |
| Diet | Herbivore | Omnivore | — |
| Care Level | intermediate | beginner | — |
Tank Requirements for Otocinclus Catfish + Pygmy Corydoras
To keep Otocinclus Catfish and Pygmy Corydoras together, you need at minimum a 20 gallon tank. Otocinclus Catfish should be kept in a school of 6+. Pygmy Corydoras should be kept in a school of 10+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Otocinclus Catfish
Otocinclus spp.
Otocinclus catfish (otos) are tiny, peaceful algae eaters that are incredibly effective at controlling soft green algae and diatoms in planted tanks. They are the gold standard for planted tank algae control, often preferred over larger plecos. However, they are somewhat delicate and require established, well-maintained aquariums.
Full care guide →Pygmy Corydoras
Corydoras pygmaeus
Pygmy corydoras are tiny, adorable catfish that max out at just 1 inch. Unlike other corys that stay on the bottom, pygmy corys are unique in that they frequently swim in the mid-water column, hovering in groups like tiny helicopters. They are perfect for nano tanks and shrimp tanks, and their micro-schooling behavior is endlessly entertaining.
Full care guide →