Does DG FP lack sufficient calcium?

So far in veg, DG FP has been working well. It is SUPER potent, especially in Nitrogen. A 1/2 tsp I'm FFOF had created some extremely dark green leaves within a week. I've since tailored it back to 1/4 tsp/gal at around 6.5 PH. I did use a bit of Protekt, but I stopped due to it cranking the PH up too much and requiring a decent amount of PH down which I don't like using. However, maybe it's just this particular plant, but I've noticed calcium issues, especially in the plant pictured furthest to the left. I suppose it could be PH lockout, but everything is PH 6.4-6.8 with most around 6.5. My water is already 190 PPM, so it definitely has some mineral content as well. I do have some calimagic in my kit, but I've barely ever used it as the PPM is insane and it just couldn't fit into my feeding schedule when I would use Flora Trio. Is anyone else currently growing with just DG FP that has some insight here? I've read a lot of the Homebrewer threads on FP, but I'm looking for some more recent feedback.