More trouble, please help

[Badwolf507]

Ive had trouble this whole grow but I am learning alot.
So have some slow growth, curling of leaves and clear signs of deficiency.
Current conditions in this 3 week grow are 75 degrees and a RH of 52%.
Im at 120ml (15ml/L) of neutreiants CNS 17, per the labels insutructions for a 3rd week.


What do you think this might be?

 

[Fuzzy Duck]

I see you are growing in coco coir !

1. You have a mild sign of nutrient burn, 1st pic lower leaf... this may suggest nutrients are higher than required, keep an eye on it to see if progress's if so do a good flush & apply a lower strenght nutrients application.

2. 1st pic new growth interveinal chlorosis could be related to a PH problem... make sure nutrient feed is PH corrected for growing in coco & should be some where around PH 5.6 to 5.8, other wise PH value out of line may cause nutrient lock outs leading to defeciencys.

 

[Badwolf507]

Thanks Fuzzy Duck!

I bought a more accurate ph tester and brought it down.
Now they're both growing like crazy.!