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Have noticed a bit of discoloration on the edges. Running about 300 ppm using GH grow. Already flushed with Ph 6.5 water. Does it look like burnt or some type of deficient?

From what I read can be ph or humidity problem just lookin for suggestions on what to do. Dimples and leaves appear to be curling. Using water ph of 6.0 and still in veg. Has gotten a little worse over last few weeks.

Have some curling of leaves near edges. Does this point to a humidity or heat problem?

Thought I was onto something with the gnats. Set out some fly traps..etc... seem to have taken care of that but similar problems on new growth.

250 watt mh Ebb and flow flooding twice a day ph 6.0 Ppm 400 Using general hyydroponic, Cal mag, superthrive. Also a few in soil. Noticing the leaves curling a bit, a little discoloration on leaf edges, wrinkling on some leaves. Are they too wet? N deficient? Any advice is appreciated.