I have a white outline around the edge of the leaves, I believe it's a hard water issue but not sure. Anyone have a suggestion?
Tried taking a photo but it doesn't show in a picture. It's a silvery white colour around the very edges
I will definitely need more information on your grow condition. But white outline or forming from the back of your leaf to the front sounds like an iron deficiency. Adjust PH to the correct range with the proper nutrient cal mag with iron supplement and you should be fine . Hope that helps ✌️🏾
Are you in a grow tent? Some times the reflection from the mylar can give that effect. Would explain why it doesn't show up in a photo? Other than that without a pic I'm at a loss! Cheers and happy growing!