Taking bets Will I run out of vertical space?

[Dabward]

Soooo my autos are done and these big girls have been in veg well over 120 days.. 44 inches below the canopy 36 to the LED.. I just lost my 3rd plant. But clearly did not have room for another 5x5 banana haze plant. Green crack on the left orange sherbert on the right. Yes I know there are deficiencies. I've been monitoring EC and they are uptaking nutrients increasing EC daily.. Yes my canopy is not even. The 1000watt DE CMH puts out over 1000PAr more ..than the 800 watt led. They are all basically at 750Par right now.. AnYway.. Question is.. Will I run out of head room. ? Coco loco. Humbolt nuets master a B fish shit.. and great white .. I can pull them to the right and fill out the whole room again. Maybe buy me 6inches. Vertically. I dont know..