hyrogen perox uses are well known in the fresh water trade for ridding tanks of bad algae breakouts beyond normal control! however it doesn't solve the problem in the first place, just makes a false appearance cause it desolves the protein & ammino chains out of existance! often leaving the toxic leftovers free floating & disolved for extrction by what ever means employed to so it> ether that or it settles in the bed for a second coming!
great for cleaning your gear though! & in trace amounts just like vinagar it can promote certain bacterial growth! but in saying that i wouldn't used it in marine! im not up to speed with who u posted there, that DR doesn't ring any bells, but sounds more like a cowboy thats been lucky on a few occasions! ive even heard some people have even used it to increase oxygen satuation levels in their tanks, only to watch everything except fish die in a gooie mess, with a strong enough dose u will cause lens to cloud, the gills membranes will wafer causing the fish to breath like crazy with little to no oxygen adsorbtion & a 24hour irration in between the platlets of the scales on your fish> dose alittle to high & they are cactus too!
the worst thing is the actual dosing side> its
PH & Temp dependant among other things in order to correctly dose at the "deemed safe levels" whatever that is! how long is a piece of string & which animals will be effected?