I did post all this information further up including pictures. My water is sits at around 7.5 PH from the tap. I always PH it to around 5.8. Im using Coco. The original post with pictures is on the bottom of page 93. The problem has got worse since then though and i will add some new pictures soon.
I know that my pen is accurate because i calibrate it once a week and am using the bluelab PH pen.
Thanks all any help i really do appreciate any advice.
Coco? Oh, that makes big difference.
I think I have just succeded to solve my ph/nutrient lock issues but I grow in soil.
The only help I can give you with coco is suggestion not to wait here but go around posts, find coco ones and ask growers directly and without delay.
It is not easy to manipulate with all these posts around and maybe not enough people read your thread in this very moment when you need help.
Sometimes admins help with getting the right answers because they now who is around, who is willing to help and how to contact them.
Good Luck