| Amano shrimp will eat hair algae. Not sure if they'll eat beard algae. However, with Amano shrimp, you've got the problem that the betta will try to eat them, and could very well succeed if they've recently molted.
Snails will munch on it, but not in quantities to make a difference. I have a small colony of MTSs that lives in a cluster of beard algae. They seem to love the stuff, but it just grows to fast for them to actually thin it out.
One of the best ways to deal with algae growth is to lessen feeding. When I started feeding my betta less, the algae problem in his tank dropped back. It's still there (right under one of the lights. It likes growing on the wysteria), but it's cut back quite a bit. |