Tips of a few non fan leaves browning, redish purple lines on underside of some

needhelpgrowing

Active Member
Here is most of the info on my plant from my Journal

https://www.rollitup.org/grow-journals/302974-green-house-big-bang-first.html
I was having what I believe was a slight N deficiency so I got fertilized and then that went away (yellow spots appearing on leaves, old leavers dying first and moving upwards).

After that went away I got a little bit of I think over fert with a few higher up tips turning yellow/brown and most of the higher up leaves curling inward slightly so I just used water for 3 straight waterings and used 1/2 as much fert (1/2 what i was giving it before which was 1/4 what it recommended so it would be 1/8) as I did before on the 4th watering and then left for a trip for 3 days.

I got back today and most of the leaves looked the same with maybe a tiny bit more brown/yellow in a few areas but the plant is still probably over 90% healthy green. The problem was I see that now 2 of the sets of non fan leaves have a little brown on the tip and its multiple leaves in the set. Also some of the fan leaves have reddish/purple on their big vein underneath. I would say its two groups out of maybe 10-20 non fan leaves have 3 of their leaves browning. Is this a Potassium or Phosphorus deficiency? The picture there looks a little extra droopy because it needed water which I gave it today with a normal dose of fertilizer (1/4 recommended).

Also it is 1.5 weeks into flowering. I am still using a 20-14-13 fert, should I switch to a flowering one now for the next watering in 2-3 days?
 

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since re watering them with just plain water do you think the ph rapidly changed. The nutes are good don't change unless you start to flower then change.
 
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