Planted Tank Guru
Join Date: Jul 2010
Location: British Columbia, Canada
I can't see why H202 (hydrogen peroxide) would not be an effective, relatively safe approach for treating plants to remove certain types of algae. I have always spot-dosed Seachem Excel for this purpose, but H202 should also do the job. I do know that it is very effective getting rid of cyanobacteria ('blue-green algae'), for which I've used it.