Purple lemonade hydroponics

Crowded.. so very crowded. The back right plant has escaped being the carbon filter and I'm getting some heat stress coming through on a few of the upper tops. I think it's as close as 6 inches to the light in some spots. Kinda screwed here nowhere else to go with the lights so it is what it is. Starting to see some calcium deficiency. Could be the heat, could be excess nitrogen, not much I can do about one but I cut some bit Rogen back and simplified the notes a bit to see if that changes anything. Smells good, colors coming through. Hoping for some pretty pink and purple buds next week