Pics are at 3 weeks flowering. Last few sets of new leaves on autoflowers in 3 gal pots are small, dark green and mis-shaped. Runoff pH is between 6.5 and 7.0 according to liquid drops test (greenish yellow on pH scale). Feeding 25% of what's recommended for Sensi-bloom A& B , Bud-bloom and Nirvana flower booster every other watering (approx every 3-4 days). 3 60w 6000k CFLs and a 60w 5000k LED spot at 6" above canopy, temps range 75 F to 85 F. humidity 50%-65%.
I have two 4' - 4 bulb T5s with a mix of 6000k and 3000k, but have 6 plants from bagseed in there on 12/12 that are taking longer to mature than expected. I'm about to chop 'em all and put these autoflowers in there on 18/6.