The Planted Tank Forum - View Single Post - Magnesium difficiency?
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post #4 of (permalink) Old 12-18-2012, 04:07 AM
Wannabe Guru
Join Date: Jan 2011
Location: TN
Posts: 1,747
If this is a high light tank, it's likely insufficient CO2. I had a similar problem and thread a few months ago.

29g high tech, 10g low tech halfmoon, and please see my 5g crescent journal.
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