The T5's are at the top, yes. I would put the HPS on top except it's a floodlight, so the ballast is attached to the light itself, making it quite heavy. I wouldn't risk hanging it on my makeshift PVC light frame. I don't want a fire hazard, haha. >.<
The temperature has been ranging between 20 degrees and 26 for the past month or so. But since adding the 2nd HPS floodlight, the temperatures are ranging between 21 degrees and 29. We're also firmly into summer heat where i'm at, so that doesn't help, since some heat leaks in from outside, as is to be expected.
I always check pH in and pH out. I'm consistently giving pH between 6.0 and 7.0 when I water and/or feed. The pH outs vary, and i've compiled them week by week in my other thread: What is My EC Pen Trying to Tell Me.
I'm feeding GO BioThrive Bloom, BioBud, CalMag+ & molasses all together and pHed once a week. And watering another time every week with just water and molasses, pHed. The yellowing might be due to the molasses, as i've only been adding it for the past month. Started at 1 tspn/gal, and incrementally increasing. Two days ago I gave them at 1 tbspn/gal for the first time.
I also give some supplemental 500ml of water in between feeds and waterings, just in case the girls are thirsty.
I'm doing the very best I can. I'm learning stuff every week from everyone here on the forums and the main site, and implementing it as I go along. Can't wait to see final results. A big thank you to everyone here. I love you all. Especially you
NebulaHaze and
alltatup, my growing mentors. <3