I agree with gottagrowsometime here but wanted to pop in and tell you that your ratios with the GH Flora series is off and is probably what is causing the deficiency.. so you'll need to correct that before the calimagic can do it's thing. The ratio, at this point in the grow, should be 1/1/1 - in other words, equal parts of Gro, Micro and Bloom... as you transition into flower, you're going to want to change up that ratio to 1part Gro/2parts Micro/3parts Bloom ... and use 1-2tsp Calimagic throughout your grow.
Good luck!