Ain’t been on here for a few days. I got 4 weeks to go now before harvest and my plants are knowhere near what I’ve seen with others. I’ve matched up my leaf issues with a hart and it seems like I’ve over fed nutrients. I’m overly concerned as I’ve seen no change the last 6-7 days which isn’t normal when I got a few weeks to go. I’ve taken some advice off a member by lowering the nutrients I put into my water, plants have been fed twice since nutrients were lowered. Due to being a first timer I’m baffled now on what approach to take to try and keep the ball rolling some may remember my last post a week back when a work colleague helped me then left the company so I’m left to figure it out myself can I even give a feed of just plain water at this stage? I had the lights lowered which seem to result in slowly burning leaves. So I’ve now raised lights to around 70-80cm away from tops. I’ve attached pictures. Sent from my iPhone using Grasscity Forum
Your leave's are to dark green with burnt tip's, you have to much N going on during flowering. Those pic's of the leave's look like more advanced nute burn, maybe even leaning to a K lockout. I would flush your medium and then only feed a P & K Booster & the plant will eat it's own N.
I agree with Digga, I'm fairly new to growing and not very experienced but I believe hes pointing you in the right direction. Deff flush it!