yea i just hung the thermometer yesterday, day temp is 78 and night temp is 59 usually. i have a duct fan for exhaust and a pssive intake. I just recently raised my light to max height. I changed to hps a few days ago to get it used to the light before flower. Just came out of its first 12 hour dark time 2 hours ago and i already see very small preflowers, possibly small pistols but hard to tell. Now the edges of the large leaves seem to be curling down along with the tips curling down, but only on main stem growth. I trimmed on the 19th, a day after transplant. I am going for a ph tester in the morning also. Thanks so much for the advice i will post another pic tomorrow.