GivingTree
Active Member
I have two plants in veg in coco under a 300w advanced DS led, being fed maxibloom @ 1/2 tsp and CALiMAGic @ 1 tsp per gallon every watering. One of the plants has a calcium deficiency and the other one is fine. Both are the same strain but from seed. I understand that you need to use more cal-mg for led, coco, and RO water. How much cal-mg would you recommend for my situation? Also is it possible to over use cal-mg? ie 2 or 3 tsp/gal.