hard water/calcium deposits

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#1
whats the best way to get rid of these? i went to town on my tank today with a razor scraper, scrub brush, and vinegar but they arent coming off....anybody have any ideas?
 
Joined
Jan 29, 2011
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#8
found my answer...thanks gumbo....MSDS on CLR says it is classified as non hazardous....to home depot!
 
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