Use your CalMag all the time. Add it to your res first, then add the other ferts, then adjust the pH. Do a complete res change if you think the barricade may be interfering- Lose any supplements you are using until you straighten the problem out and it stops spreading.
stinkyattic Reviewed by stinkyattic on . Deficient or locked-out? This is a grow in Sunshiine #4, 5 and 7 gallon pots, 5'x7'x8' area, 2200w vented shaders in an otherwise sealed room. AN Sensi 2 + program as per AN nute calculator for veg, flipped to 12/12 and began AN connoisseur 2+ program Light Feeding on AN nute calc. Temps don't exceed 78F in veg (no CO2) and run about 84-86F in bloom with CO2 matching PPM in food. Humidity @ 50%, RO water always Ph'd between 6.2 and 6.4. The weekly reg is 1 feed, then 1 water with Sensi CalMg (and GE Seaweed Extract Rating: 5