Otocinclus (Steindachner, 1877)
| Scientific Name | Otocinclua affinis |
| Diet | Herbivore: Algae |
| Alt Common Name | Golden Otocinclus |
| Family | Gyrinocheilidae |
| Origin | South America |
| Aquarist Level | Beginner |
| Community Aquarium Safe | Yes |
| Coloration | Golden-green with small black markings and a horizontal black line running the length of the body. |
| Disposition | Peaceful |
| Hardiness | Hardy |
| Compatibility | Compatible with Angelfish, Barbs, Catfish, Cichlids, Danios, Discus, Gouramis, Larger-sized Livebearers, Loaches, Minnows, Plecos, Rainbowfish, Rasboras, Tetras. |
| Mature Size | 5 inches |
| Minimum Recommended Aquarium Size | 10 gallons |
| Sexual Dimorphism | None visible. |