hope someone can give a little insight calmag or ph?

the last pic w/ the little bit of yellowing in the middle of the leave is actually a different plant from the other pics. It looks healthy besides that little yellowing. The other pics are all the same plant and it is about the worst of the group

Do the pot looks small slightly stretched I would top at 5 or 6 set of leaves
I don't know your nutes or coco my best advice is switch to dirt~

You said that you feed every time you water. In times like these, when you aren't really sure what the hell is going on with your plants... A good thing to do is to flush them real good with straight water. Then give them a light, regular diet, feeding the next day after the flush (after the medium has dried out a bit).

I'm just taking a guess here as I haven't grown in coco before, but I'm pretty sure that it probably dries up pretty quickly. So maybe the problem is related to the coco medium drying up every night then being fed everyday. Causing the nutrients to build up in the medium which would make it become acidic and overfed. That might explain the "nitrogen claw" and the yellowing (which is probably caused by ph lockout). Flush them and see if it helps.

PH!!!!!!! This is Ca-Mg defic.jackpre-harvest 007.jpg

It's neither actually it's cold temperatures and it looks like you got a lil splash of nutes on that bottom leaf.

Nice investigation work. It did get down to 61 a couple nights but the plants furthest from ac actually looked worse so I wasn't sure. I have dialed ac back to 70 at night and around 75 day. I think I will feed light and see how they work out

Originally Posted by MrGhettoGrower

Do the pot looks small slightly stretched I would top at 5 or 6 set of leaves
I don't know your nutes or coco my best advice is switch to dirt~

Will not be switching to dirt. The pots are fairly small but they are not bound yet. They have been showing flowers for a week or more not topping that far in.

Originally Posted by Ghetto Child

You said that you feed every time you water. In times like these, when you aren't really sure what the hell is going on with your plants... A good thing to do is to flush them real good with straight water. Then give them a light, regular diet, feeding the next day after the flush (after the medium has dried out a bit).

I'm just taking a guess here as I haven't grown in coco before, but I'm pretty sure that it probably dries up pretty quickly. So maybe the problem is related to the coco medium drying up every night then being fed everyday. Causing the nutrients to build up in the medium which would make it become acidic and overfed. That might explain the "nitrogen claw" and the yellowing (which is probably caused by ph lockout). Flush them and see if it helps.

Yes I feed every time I water but it's between 2-4 days. I may do a flush if they continue to get worse. I changed the temp couple days ago we will see if they just got damaged in that low temp time.