My girls are 6 and 1/2 weeks into flower and 8 of them look awesome, but one (she is a blue dream) is having some issues. I have a notion that it might be nitrogen toxicity so I have tried cutting back on the nutrient I use that has the most N in it. Not sure what else to do or if this is even the problem and being only a couple weeks from harvest, I really do not want to do anything to mess it all up. This is my first grow and I have made it this far. Help!
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Ok larger with the nitrogen. Dark, waxy appearing leaves with clawing and burnt tips. What nute lineup are you using?
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@Borderryan22 Using Cutting edge solutions , following their chart… I cut down on the micros though thinking maybe nitrogen toxicity. I picked the micros because it has the highest N content???
Ur plants dont need alot of nitrogen in flower there more about the pk side of things in flowering stage ur plants are going to need more potassium and phosphorus aswell as calcium and magnesium aswell
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Some plants are more sensitive to nutrients then others even when all plants are the same strain. Def too much nitrogen, but you got some other stuff going on too bc farther down the leaf in the veins has got some browning going on. Could be too much p/k as well but without a runoff reading to compare the in feed, can be hard to tell. Sometimes too much nutrients can lockout other nutrients and look like a deficiency when in fact its too much. But ph range is important too bc that can cause lockout as well. Since your at 6.5 wks, its too late too worry about now just try to keep her comfortable untill chop now.
You can also see some of these signs due to overwatering and damping off. N excess is pretty common in mid to late flower for reasons stated.
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They probably want you to flush so that you can throw more nutes in 
. I don’t do charts for that reason alone