RO water, no calmag, spray to runoff- BAD BAD gardener! spank spank spank! You're leaching nutes out of the leaves- it's called reverse foliar feeding- plus you NEED to add calmag to any distilled or RO water. Go grab a bottle NOW and change out your res to include RO water plus calmag up to 250ppm before you add the rest of the nutes.

And only use those crazy hi-test grow supplements EXACTLY as the label says!