Oldlank
- 10
- 3
Can anyone tell me what is causing the yellowing in the leaf margins and veins? I am using Humboldts secret A and B, calmag, and sweet sticky. The tips are yellow as well which would lead me to think it is excess nitrogen...? Water pH 6.0. I have also heard of a nutrient block caused by excess so maybe I should just be flushing at this point? Thanks for the help