The Planted Tank Forum - View Single Post - H2O2 on emersed UG?
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Old 02-18-2013, 05:34 PM   #8
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UG is pretty sensitive. I have spot treated with excel and no issues, though i did not dose too much. I also tried algaefix, it melted. So just be careful. Try some on a few leaves and see how it reacts.
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