Wow there are so many different kinds of algae eaters to chose from. I have heard awesome things about ottos. I would go with those. I've heard good things about the bristenosed plecos too, though I don't think they are very cute. I had a rubbermouth pleco and I think the algae ate him! lol I have a clown pleco now and he is pretty cool. Royal plecos are very cool, but expensive. Stay away from the Chinese algae eaters. When they mature they get aggressive with other fish.