I have a 10X11 flower room. (4) 1000's in air cooled hoods, room is sealed, just blowing the heat off the bulbs. 24,000btu mini split. C02 gen.
I run 4 plants per light in 10gallons. about 8 week veg time.
C02 at around 1200 PPM
only getting about 4-4.5 #'s off each run, does that sound low...