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#1
02-02-2012, 12:24 AM
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About the only way i can think of if it is calcium build up is clr but you sure don,t want to do that to a running tank.The other option is to use the finest wet sandpaper you can find very lightly rubbing the spot that is rough.
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#2
02-02-2012, 12:50 AM
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I did the same thing to the back wall of my tank awhile ago. I ahve the razor attatched to the mag float. After a few weeks of scrapping it's no longer there. I'd just run the razor along it every day or 2 when i cleaned the glass.
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My 150 In Wall Build
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