Leaves yellowing on top

I'm about two weeks to harvest, and one day the top leaves started to yellow.Any ideas? Im using biobizz nutes.

Pretty normal towards the end of flowering, what week are you in now? Have you been cutting back on the feed? Also have your temps dropped recently?

I'm in the 10th week. I am feeding as usual. Temps are good aswell.

Nothing to worry about. What you're experiencing is perfectly normal for a cannabis plant near its end. Enjoy your harvest!

Thanks for the fast replies!