At that time my log was as follows PH 5.0 ec/ppm* 800, light 1200 w hps @ 17 hrs, temp day 88F night 76F, aeration in res. as well as pots, exhaust on same as light cycle, water flow pump @ on 15 min, every 2 hrs. 2 15" oscilators. Humidity 60-65% will 12/12 @ 30-35 days. Roughly 55-65 days...