Heck ya! I never fear dosing H2O2Hi twilliard, I'm sure you've covered this somewhere before but what's your thoughts on dosing the whole tank with H202 to get rid of algae that's already in there?
I have yet to see and document a single negative.
Currently on my tank (from my cyano outbreak-dang vinegar leak) I am dosing 2.5Ml Hr 3:1 ratio