looking for an algae eater that wont get to big. i have a 29 gallon community tank with 6 guppies,2 rams,1 dwarf gourami,1 male betta and 5 cory cats . i have 2 pieces of driftwood with lots of java fern on it. ican get the algae off of the front and side glass with a magfloat but the back and the driftwood are harder to clean, any ideas?