well I have been growing the same strain for over a year now with nothing but GH 3-part nutes, and Superthrive (during clone start and veg only) and have just about got it dialed in where it needs to be so I have not yet used any additional supplements. As for foliar spraying, the only time I foliar is IF I need to while rooting clones. I think any slow growth that you have had to this point can be blamed on the lack of some micro nutes and not enough of the major nutes, both problems you are now addressing. :jointsmile: