starting to get red algae on the sand now...this is starting to become a pain...haha. I'm also getting alot of brown spots I assume is algae on the glass....very hard and wont easily rub off with a magfloat. Anyone suggest anything to get rid of this stuff? I'm using a bag of chem pure in my 2nd chamber. It might be the distilled water I've been topping off with huh? BLA