i'm using H&G nutes, and they are A and B type of nutes.
i'm required to wait 15 minutes after putting in A (first) before adding B (second) or i would make both of them weak. (they will combine prematurely.)
treat it like any other feeding regiment.
just follow their feeding schedule and recommendations. call them if you have any questions. i'm sure they won't lead customers astray.
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one question though, what medium are you using?