you dont throw peroxide in the tank. it coincides with a fresh water bath. its far more complicated than a copper treatment and is best for emergencies only
Thanks for that @Russ265 ! Without knowing any of this I started down the path that h202 treats dinos, marine velvet are dinos - maybe there's a good solution to be found here. Glad I found this thread and I'll be tagging along to see if anyone else tries it out (I just tapped out the pocketbook after losing this round of 4 fish and my tank upgrade). Going to go through the previously shared Tang thread now as well.