The plants are 8 WW and 2 Blueberry. They are 4 weeks old from germ to veg. I use Botinacare Pure Blend Pro and Dark Energy. They were under a 1000w MH and now they are under 1000w HPS. The biggest plant is over 18 inches(probably male) and the smallest is 13 inches.I notice these spots on my leaves of the biggest plant as I went to change my nutrient solution over to bloom. I've checked the PH and its fine. The roots aren't slimy at all. The temp is at 80 degrees. The humidity stays between 40-45%. I checked for any type of pest and that came up negative. What could be my problem? By the way, I went ahead and switched over the nutes. I hope that will straighten it out.