Otocinclus Algae Eater
Otocinclus, or oto, are small, hardy, peaceful, and very active in the aquarium. These fish are great scavengers and do a nice job controlling film algae. In fact, these are the most popular wild species for algae control and will get along with any fish that can’t eat it, including exotic shrimp. AFS recommends a small school of these fish for any community tank. You will be amazed by their work ethic.
Quick Facts
| Scientific Name | Otocinclus affinis |
|---|---|
| Origin | Amazon basin, South America |
| Care Level | Moderate (needs a mature tank) |
| Temperament | Peaceful |
| Adult Size |
FAQ
What kind of tank environment do Otocinclus algae eaters need?
They thrive in a mature tank with stable water parameters. A well-established aquarium with soft water and plenty of hiding spots is ideal.
Can Otocinclus fish be kept with shrimp?
Yes, they are known to coexist peacefully with shrimp, especially exotic species that cannot be eaten by the fish.
How effective are Otocinclus in controlling algae?
They are highly effective at consuming film algae and are considered one of the most popular species for algae control in community tanks.
Jasmine Young –
I added a small group of Otocinclus to my 10-gallon tank and noticed a significant reduction in algae within a week. They’re active and don’t stress other fish. Great for a low-maintenance algae solution.
John Allan –
The fish are peaceful and fit well with my shrimp and tetras. They don’t eat the shrimp, which is a relief. I’ve kept them for three months and they’re still healthy.
Brian McGrath –
After introducing Otocinclus to my tank, the algae on the glass and plants disappeared. They’re hardy and easy to care for once the tank is mature.