[hardball420]

I missed my opportunity for good pics right when the lights come on the past couple of days. I will try and get some in tonight. Your probably right about the mg deficiency. Thank you so much. Thats just what I needed. Almost everything I've read suggests heat stress, which is practically impossible with water-cooled HIDs. Plus, they seem to do it the worst when the lights are off and then open up for the light. My ppm is fairly low, running around 700. I've had successful runs with the Canna Aqua nutes always staying below 850-900 ppm going in. Something strange though, I think- all plants are sweet and sour deisel clones. But one, just one of them was completely unaffected by the toxic salt build-up (no droop, discoloration, etc.), and is six inches shorter and flowering days earlier. Thanks again!