Maybe this has been discussed already, but I have been thinking about the possibility of an algae scrubber that requires minimal cleaning, say once or twice a months at most. If I understand correctly screens need cleaned to remove algae before it starts blocking light from reaching algae closest to the screen, which dies putting nutrients back into the water. If anyone could direct me to any threads that cover this topic already I would appreciate it, and if not what are your thoughts on the matter?