Similar to FF Boomerang ( which actually works pretty damn well ) ... i water in a small amount after transplant to help temper shock . Probably the only FF bottle i like. This is superior because of the added myco complex , sulpher , kelp , boron , etc.
Superthrive has been around forever so it cant have survived this long without some use for it. Some growers use it in rez and clone ( diluted plug soak ) . I prefer this.