Howdy Xena, I tried the 'Superthrive' before and could not tell if there was any benefit from using it. I got a better results with just plain old molasses, but even better results with the GH Floralicious Plus and the FloraNector, both of which I'm still using. The Floralicious Plus is used at the rate of 1 ml/gallon for the entire grow and the FloraNector is used in bloom at a rate of from 5 ml to 10 ml / gallon.