Can Otocinclus Live With Royal Gramma?
❌Not Compatible
Incompatible pH. Otocinclus Catfish needs 6.0–7.5, Royal Gramma needs 8.1–8.4.
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Parameter Comparison
| Parameter | Otocinclus | Royal Gramma | Overlap |
|---|---|---|---|
| Temperature | 70–79°F | 75–79°F | 75–79°F ✓ |
| pH Range | 6–7.5 | 8.1–8.4 | No overlap ✗ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2" | 3.1" | Similar ✓ |
| Min Tank Size | 11 gal | 30 gal | 20 gal minimum together |
| Diet | Herbivore | Carnivore | — |
| Care Level | intermediate | beginner | — |
Species Profiles
Otocinclus
Otocinclus spp.
intermediatepeaceful11+ gal
The Otocinclus (Otocinclus spp.) is a intermediate freshwater species known for its brown-gray, dark lateral stripe coloration. Small algae eater. Surfaces.
Full care guide →Royal Gramma
Gramma loreto
beginnerpeaceful30+ gal
The Royal Gramma (Gramma loreto) is a beginner saltwater species known for its purple (front), yellow (rear) coloration. Purple/yellow bicolor. Bottom to Mid.
Full care guide →Other Compatible Tank Mates
For Royal Gramma:
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