I use(d) both Hydroguard and Hygrozyme with tap water and didn't have any trouble. I don't think there's enough chlorine to kill the bacteria in Hydroguard.
dejayou30 Reviewed by dejayou30 on . Mold in reservoir??? So I JUST started using molasses in my hydro setup a week ago, and I lifted up my res top to find, to my horror, a layer of mold floating on top of the water. Come to think of it, it's not that fuckin surprising to think that this could happen to a 70 gallon cup of sugar water sitting at room temperature. How the hell do people avoid this with carb sources in hydro res's? I didn't use H202, which I guess was dumb... right now I'm draining the res as much as I can (It's impossible to get Rating: 5