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Flourish Excel is the best thing ever for killing BBA.

When I have it, I dose the recommended amount on the bottle for adding carbon to your tank every couple days and within a week the BBA is red or white. Usually in 2-3 weeks, it is gone.

I love Flourish Excel, but not because it makes my plants grow but because it kills BBA.

People say to increase your CO2 to kill it. It's never worked for me.

Good Luck,
(I have no affiliation to Seachem)
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