I just started using this on my first soiless grow . I have done many soil grows but recently decided to do something different ... my medium is coco 2 parts , vermiculite 1 part , perlite 1 part . . . I'm 3 1/2 weeks in and they look great . My question is ...could this be the only food I feed them to finish flowering ? Or is there something I could get to use in addition to this ? I just don't have much experience with soiless as oppose to soil grows any info would be greatly appreciated