Hey TaNg, I've been following this schedule for the past 27 days but I think I've stumbled upon a problem. I'm trying to figure out where I went wrong. My plants are under a Mars II 400 and a 150 hps ( 20/4) about 26-27" above the canopy ( the LED ). In Promix BX using A+B and Calmag plus 2-0-0 ( Can't get the Density Calmag ). My temps range from 75-81 degrees Fahrenheit and humidity anywhere from 38-60. I started the first feed on day 10 ( tap water let to sit for 24-48 hrs ) ( PH of tap is around 7.6 I think ) with 1 ML per L. By day 16 pistils had emerged. From there I was feeding 1 ML A+B plus 0.5 ML Calmag because of the extra 2% nitrogen I didn't want to get crazy. Come day 21 I was feeding 1.5 ML of A+B and upped the Calmag to 1ML. I started to notice some slight yellow tips on the Sour Stomper, but no clawing. I also noticed the first leaves yellowing out and both 3 leaf sets starting to get pale and blotchy with a paper feel. So I said to myself, ok maybe she is a heavy feeder and bumped up the feed to 2 ML and backed off the Calmag to 0.5 ML again. The top growth is green but I do notice a few yellow tips. I'm watering about 2 cups of water every other day to let the medium dry out some. I'm trying to figure out whether I fed too much or too little or if a magnesium deficiency is creeping up on me. The yellow tips tell me back off, but the pale leaves moving upward make me think it's hungry. My Skyrone Stomper looks good besides some fading below almost similar to the Sour.
EDIT: The more I look at these pics, I do notice slight clawing on a few blades of the lower leaves..
I also just ordered some General Organics Calmag 0-0-0
Sour Stomper
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