If someone can tell me what that burning of the edges of my leaves on that photo is, I would appreciate it. It has happened with each of my hydro grows in the later part of harvest. First grow was Harijuana and now this grow of Extrema. Both strains are from sannieshop. Maybe it's a strain thing or a ph thing or what. I have 3 gallon pots and the plants are about 6 or 7 feet tall. Maybe the plants are getting root bound. I keep the ppm to a minimum. I have a 100 liter res, but only use enough nutes for 75 liters. I thought this was nute burn with my first grow so I scaled back the nutes, but now I see it's happening again. The lights (2 thousand watters) are 14 inches minimum away. Most of the buds are like 2 feet away and i'm still getting this burn. Doesn't happen on all the girls, but definitely the larger girls. I have been fighting root rot, but I got that under control weeks ago so I'm sure that's not the problem. Any help please.
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