The Planted Tank Forum - View Single Post - diatom if it won't rub off?
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post #7 of (permalink) Old 02-02-2013, 02:21 AM
Planted Tank Enthusiast
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Join Date: Sep 2012
Location: San Jose, CA
Posts: 793
I know, I had the same issue. "OMG it doesn't wipe off, this isn't diatoms. These people on TPT don't understand this is different". It's diatoms. Give it time
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