Leaf colour help. Hi all. I think there may be a p...

There is nothing wrong with your plant. It is completely normal for the new growth to be really light colored when it hits preflower. The growth will darken up as the leaves grow out. Nothing to worry about

Looks like you have a iron deficiency.

looks like nutrient lock.

Looks like it might be the start of an Iron deficiency even though the pH is correct, or if you believe your system is truly lacking in iron, you may want to consider flushing your system with clean, pH’d water (if on schedule, you can do this alongside a dose of your regular nutrients) and add a supplement that contains Iron, Calcium and Magnesium. Hope this helps! Happy growing! 👊