I use it in my ebb & flow res and in my auto feed res and they both feed plants in coco. Honestly I dont know if it helps at all but it doesnt hurt anything except my wallet.
What I do think helps coco grows is Recharge, it has all the good stuff your roots need. I generally do a root drench once a week with it or if you hand feed you can just use it as sort of a top coat.
