the gha spots id hit with peroxide outside the tank, all this cheating is just making up for any variables not controlled in your absence to me its just quick rebounding, no real rules broken. if there's one thing im sure of after 7 yrs of constant peroxide threads tank after tank, its that leaving an invader in the tank and taking action X on the water is the cause of all of them.
Making a tank fully clean, then doing action X and gauging only growback to rate action X is the new wave man. ha!
B
also, im disappointed UV didn't have your back, he must be only correctly sized for the tank and not grossly oversized. the overrated ones will cover this kind of stuff, and, your current one probably lessened it. this would have been worse without, hence the nice backup safety that is UV.