Totally too soft source water. You MUST add calmag up to 250 ppm, and THEN use a coco nute. That's calcium def right there. If your nute is not a coco nute, add it up to 300ppm instead. Coco scavenges calcium.
Also, with coco + perlite, it is super hard to over water. But in grow bags, it is hard to do the lift test- you should not get in the habit of moving grow bags around! They jostle the roots and can damage them.
stinkyattic Reviewed by stinkyattic on . Still fighting Yellow w/brown spots I am hoping someone can help me before this poor plant dies. The stats: Plant was fine prior to transplant. 4 week veg (mother) 400 W halide 20" away Day 74 night 66F Coco / 20% perlite in 7 Gallon grow bag. Well water P.H. 5.6 and cond @ 23 ppm Rating: 5