Need Help Please!

Ok so these plants i got as clones and some of the stems of the leaves were purple when i got it. Since i've had them all the new growth has been green and very healthy up until now on one of them. The stems are for the most part all turning purple and some of the leaves are browning and dying off. Im using Fox Farm Ocean Forest soil and Using Fox Farm Grow Big which is a 6-4-4 NPK ratio. The PH of my water is between 6.5 & 7. The temps in the closet are 77 but it may be the temps in my room are much colder since its winter and i sometimes have the window open. Im pretty sure its a deficiency of some sort though and any help pin pointing it would be helpful. Thanks! This is the Blueberry which has the same problem but not nearly as bad. A close up of the Blueberry leaf dying.

Heads up..Blueberry is a picky bitch. They clone like crazy tho. They seem to like N in flowering imo. Nice yield when you get it correct. Looks like some burn on tips. Ya gotta really stay on top of pH and calmag. Good drainage and can be water hogs.

they look burned more than deficient, im pretty sure purple stems is a PH issue or potash toxicity.

my suggestion would be to test the SOIL ph then go from there and maybe stop feeding them for a little while. if your in FFoF soil you can stand to not fertilize for a couple weeks i have gone entire veg stage without a single drop of additional nutrients. You have to remember that suplimentig nutrients is not a MUST DO for everyone if your soil is ammended properly (which FFoF is) it should have more than sufficient nutritional content to sustain a plant till at least week 3-4 of veg.

Brown tips are a burn, not a deficiency.
Keep your light close in there too.
You might also want to keep them away from that copper gas line, IDK if they might/ can pick up anything from the copper.

Damn that's a nice camera!!great clear pics.............yeah a little nute burn going on/ don't need any grow nutes in ffof so just use plain water until flower....get those cold temps fixed, can lock out some mobile elements including phosphorous ^^^^......yeah blueberry is a biotch

RetiredMatthebrute said:

im pretty sure purple stems is a PH issue or potash toxicity.

Click to expand...

alot of plants have purple stems when starting out, its completely normal.

Definitely burn. I would flush, and stop feeding. Your leaves are a dark green, almost blue which shows too much nitrogen. Less feed.

Thanks for all the quick responses guys it's alot of help.

jesus of Cannabis said:

alot of plants have purple stems when starting out, its completely normal.

Click to expand...

Good point. I'm growing a power plant right now and the stems and stalks are green and purple. I read that some strains have purple stems as a part of their genetics.

wow thats a crazy camera, i see you already have your answer =]