Having problems ID'ing what is wrong with yellow leaves/new growth

I am using 600w LED, approx 32" above canopy.
Plants are in Fox Farms Ocean Forest soil, about six weeks along in veg in 7 gallon grow bags.
I have not been adding any extra nutes yet.
The yellow seems to start from the top. The leaf tips are curled down.
The heat is fine in the tent at 75 degrees and humidity is 60-70% (about as high and stable as I can get it).
I've been watering with 6.8PH. I ran through a heavy watering and the run off PH was fine, little low, but I would expect that.

I can't nail down if I have a deficiency or toxicity problem.



Any ideas?

They are hungry

Yer soil only feeds for like 5 weeks

My fault. Here are a couple pics without LED on.

BobThe420Builder said:

They are hungry

Yer soil only feeds for like 5 weeks

Click to expand...

So that would explain the new growth coming in so yellow I suppose.

Yup

BobThe420Builder said:

Yup

Click to expand...

Thanks man.... appreciate the quick input.

They are hungry yes, because they are locked out from uptaking nutrients due to being overwatered. I have seen this more times than I can count. Let that pot/container dry out a lot before your next watering. Then add a half strength nutrient mix and water shallow/lightly. Then once she dries out again, increase nutrients to full strength and water her more heavily. Continue rotating that process as you go.

Actually after looking at your plants again, I'd skip the half strength feeding first and start WITH full-strength. Then go half on the next and rotate.

I'll give that a try and post back in a week or so... See what directions they are going then.

Appreciate the input.