I clean when needed and i break all the rules and use a mag float. I by far do not have show tank glass. It is usually just a pale film on the glass. I have a boat load of those tiny snails that do most the work for me. Only have about 5 turbo snails, 1 cleaner shrimp and a banded shrimp in there other then that.
I find I clean the outside of the glass more then the inside, but that is mostly from kids pushing their faces against the glass all day.
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