depends on how you want to use it I guess.
X2 on the Enzymes Komplete for maintenance and keeping stuff fresh. I use it on the inbetweens to clean all my hydroponics gear (F&D kits and screens,Pumps,trays,1/2 gal pots etc). Froths up like crazy, and when it stops -its done. Usually about 24 hrs or so. I tried running it in the rez but didnt have the success that @Dirtbag
has. I usually run a sterile res and the plants started getting fussy when I switched over. I cant recall what ml/gal I was using but I tend to run things on the lighter side. Very well could have been my dosing or something I did?