Coco Grow ,yellowing

[Axtionaxtion]

New grower, growi g coco and using g coco tek nutes,,this is auto flower 20 days old..van anyone tell me what going on here???

 

[Jamesb1985]

Not getting enough nutes I'd say.

 

[MW7945]

In coco this is about the time to start bumping up the nutes.