Hi there budd!
To me it looks like a nute burn, i can see it in week 4 already.
tips are getting yellow, and your DARK green leaves are starting to "claw". Not just on the top. And on all plants.
Problem with autoflowers, i run into myself, is to much nutes, this case nitrogen i believe.
Do you use 15ml /l every water feed or do you feed without also? What is the NPK ratio of your nute?
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