Yes, a bit, but I don't get the larger blotches. Plus the leaves are affected uniformly around the plant. Even the ones at the bottom in shade so I can't see how it could be heat.

I have a fan blowing on the light (it also hits the plants) and if heat - the WW is not affected at all so it doesn't make sense. I just can't figure it out and it doesn't help that I don't have a PPM meter to report the results.
moreover1 Reviewed by moreover1 on . First Grow - 4 weeks into flower (pic) Suggestions? Hi. Technically, my first grow was a bagseed try. 2 Gorgeous males! This is my first 'real' try. Bought seed. I have a NL X Shiva and White Widow. In hydro (bubblers). Now 4 weeks into flower. 400w HPS. Nutes are GH but I don't follow one set formula, but loosely based on Lucas's or 123. (I need to nail this down) I don't have a PPM or pH meter. I use the pH drop kit. pH is at higher 5's (near as I can tell), but I suspect I've had fluctuations. I want to do this right & am getting Rating: 5