Your reading my mind.. it's a dual 600 ballast... was thinking.
A. open up the circle and drop in another 2 ft apart
B. go through the gymnastics of stacking the bulbs
definetly acrobatics
also i'd get rid of that one. I'd substract 1 watering per day (to improve the rootsystem) before making a decision 3 days later. Also root-Cponix or pk babyfood foliar. Then 2 bulbs on demand
A.1 variation w/o the looser & training them like a mofo?
x
x o x
x'
x o x
x
dude, you flipped them to 12/12 or is just my imagination
They are autopots and I'm gone for 7days at a Crack. they're currently consuming 1 gallon per day. yes I flipped them about 3 weeks. I'll open it up and drop in another bulb.
that was quick^ if temps are in check give them a fuckton humidity. its a useful enviromental buffer as you know. It will help with that claw [low par - high ec]