@3dkkm, I don't know about green house seed but I started using advanced nutrients two grows ago and they're the real deal. You can check my grows white widow was finished with general hidroponics compare to cbd critical cure and see the difference for yourself. I dont have to worry about the ph no more. If you think of switching to advanced they got an app thats called bud labs and they give you the nutrients and the amounts to use. I go 3/4 strengh e.i. 32 ml per gallon I use 24 ml. And the results have been favorable.
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