Autoflower Grow

Sorry for the delay guys, I have been so busy between my plants and my 20 reptiles that I haven't found time to update my diary! I have plenty of pictures and the info to fill in the gaps! I just started flush on Wed. 6/27! All 5 of my babies suck up insane amounts of water, I have watered with 6-8 cups every other day, alternating plain distilled and ph'd nutrient solution since the beginning of flower. The 2nd Auto Kush (Originally mutated) has prevailed to be the bushiest of them all, it didn't start budding until week 9, and has continued to grow at an extremely slow pace. It has a 16 sq ft grow room all to itself w/ 2x Marshydro 300w LED and a 150w Hydrofarm Sunburst Mini HPS. This plant was last watered today with a 2 gallon Sledgehammer flush - top leaves showing symptoms of nitrogen poisoning - dark green leaves and claw.