Calcium deficiency?

Hi all,
Just wondering if this looks like a calcium deficiency, hasn't affected most of the plant but wanting to get it sorted ASAP.
I'm using coco and perlite 70/30, canna a and b, h&g roots excelurator, silica.
Ph 5.8
PPM 800 (truncheon).
Thanks peeps

That looks like it could be man. I have a blue skunk join rite now that looked similar to yours when she was in the veg cycle. But I veg her out and flushed her and I guess she worked it out.

Has that look. Any calcium in your water?

Looks like to much water and causing it to lock out. But I am blind.