Wanted Canabise leaf problem with photos.

[Blink420420]

Help.
Ph is 6.5
Using Canna Full Range not calmag. Tap water and hand feeding till runoff.

Rez ppm 1300. Waste 1400-1700

plant is showing this problem almost every leaf I really don't wanna lose this plant.

 

[Blink420420]

Photo

 

[savagenovelties]

Your in coco? Looks like it been overwatered even though you haven’t showed any pictures of your coco. If your measuring runoff the. Your overwatering. You only water coco when your root zone is almost dry or your pot is light when you pick it up. Anything more and you’ll get what your dealing with. I’ve been in coco and using canna nutes since05 & ph should never go over 6.1