Wrinkled or shriveled leaves

Hi guys need help coco grow leaves seem to be shriveled and mutated it's affected the new growth

Is the damage the leaves that are closest to your light? I am not sure because the photo is blurry but if it is new growth only like you said i.e. down into the plant the leaves are also twisting then likely this is caused by pH swings or pH completely out of range for mj. Hydro yeah? 5.5 to 5.8 is your pH you want that to be fairly stable. Some pest can trip leaves out in this way also so I guess that would be my next thing to check if my former statements are impossible.

I water from a 70 Ltr res canna a+b rizo, canazym ph 5.5 hand water tull run off I think they look healthy and the fan leaves getting a bit as well but more like they tearing oh and no bugs should I be worried...

I usually have leaf deformities when I have ph out of wack

Raise the lights and cool the joint down.