I have a nursery tank for my 55g and it's got lots of green algae in it due to the amount of light it gets. I've got nowhere else for it to go so that isn't an option. So I thought about adding something into my tank to eat the algae. My big tank has a pleco in it which does an awesome job at eating algae but obviously most (all?) plecos are too large for a 6g. Any ideas?