I have a heavy bias for one simple action: a before pic of some algae, a following date prediction that algae should be dead/bleached by, and a follow up pic that either confirms or denies it. then log in 60 page thread here or there. I spend borderline antisocial amounts of time repeating this loop
if you lift out the frags from the water, apply peroxide from a new not previously opened bottle using a dropper right on the algae where it anchors on the edges of the frag, leave it to wick among the strands for 2 mins, then simply set back in tank, take before after pics, the prediction is 36 hours to why didn't I do this much sooner
this isn't saying every scenario we dump mouthwash in the tank, its just saying 30 hours to yet another fine set of before and after pics. The main benefit is not having to alter tank params if they weren't out of line eventually. If they are out of line alter away.
using this specific method, zero peroxide contacts your coral for zero risk. If accidents occur, threads show that's fine too but using above=36 hours till algae doom fun prediction.
grow back prediction: not much if any, frag plus aren't very porous. If a full tank shot shows patches elsewhere, expect fragmentation re growth and let's zap those too. factor my biases into anything I type. I'm in it for after pics pretty much.
B