Lower fan leaves turning yellow

I had a grow like that, turned out the wife had been spraying weed killer around, & it does exactly what is says on the tin😒, anyhoo , increase nitrogen intake and she might recover, but not best start for them buds eh😞

Brave is bang on with this answer. It seems you have been quite heavy on the defoliation. This is probably why she is needing more. Try to remember every healthy fan you remove is taking energy away from the plant it could use to grow your buds fatter and ripen faster too. Just something to think about for the future :)

Hi mate, if its just the lower fan leaves then its a nitrogen deficiency. Looks like your into flower so normal for this stage though a little early. Maybe give her a nitrogen boost but prepare for stretching. I hope this helps, good luck and happy growing