I'm going to throw in a vote for the bristlenose or otos as well. I love them both. The bristlenose is the best cleaner I've seen, but I think the otos are the most fun to watch. Don't forget that the bristlenose should have more than algae wafers for supplement. Throw in a slice of zucchini. It's good for them and it's really fun to watch them go to town on it.
