Lack of light??

[Faddenator]

I am growing in a 8x4x6.2 tent with a 1000w hps. I just switch to 12/12 15 days ago. All my plants are definitely showing a decent ammount of flowering but quite a few of the lower leaves on my plants are drooping and even some dying. I have 12 plants. Do I need more light? Oxygen? Please help. I can take pics if needed. Thanks

When was the last time you flushed them? Probably just some salt build up in your soil throwing your ph out of whack. If you haven't flushed recently, you should. Keep in mind that this will not fix your already yellowing leaves, it will only prevent new growth from doing the same. You can go ahead and clip any leaves that look bad, as they arent doing your plant any good. Hope this does the trick.