How often do all of you have to/ need to clean tank glass? I seem to be doing it a little more often so not sure if I am overfeeding. All parameters are excellent. I recently added another fish and been putting in a little more food than normal hoping the new addition would get his share. All food is gone in a minute or two so this question is boarding on how much to feed but I am using the algae build up on glass as a possible guide.