nitrogrn def, maybe more. help!

Take a look at these fan leaves. From what I can tell I have a nitrogen def but I feel like there might be something else going on here as well. Im about three weeks into flower. All of my leaf tips are drying up and breaking off. Suggestions?

What nutes? More light is good. I would stop N for abit.. you're clawing. Ph? Using calmag?

I haven't used my nutes in a while because I thought I over fed them a while back. My run off still seems to be leaving behind a brown residue so idk. No calmag. Should I be useing calmag even if I don't have a deficiency? Ph is a little high I think, probably sitting around 7 but i dont have a ph meter right now to test it.. I have been useing tap water distilled and when I feed just straight tap water because im pretty sure the nutes lower the ph. Im new to this so take it easy on me. Any advice would be wonderfull.

7 is high..lower say 6.5. Calmag makes its metabolism work..I add myself. Did you put dolomite in the soil?

more of a nitrogen toxicity.

Flush. You should notice the runoff will be clear after flushing.

yup.. leaves look real soft too much nitrogen maybe a little overwatering.

PH meter // ppm meter combo. I suggest making one your friend for the time being. It will make life less worry some. IMO a wise investment. Dont skimp on it though or it may screw you later.

Water till 20% runoff to avoid salt build ups

Sir KK