Yellowing nearing harvest or?

Sup guys
Are these yellowing because of harvest drawing near? Or is it a def I should be concerned about?
Hydro drip system, ph 5.8, 755 ppm, res temp 24.5c, canopy temp 30.c.
I know there's a little nute burn, I'm talking about the centre of the leaf.
Ta

Depends on how long you figure you have to go.

Don't know how far you're into flowering but based on the size of the buds I wouldn't worry about treating a deficiency at this point, combined with your slight burn, it could make things worse. Maybe flush them because it looks like you have some burn, other than that do what you have to to keep them going until they cross the finish line.

All preference! Chop or not to chop?!...

Think they're in the 6th week. Lol they're the smallest buds too! good job on the grow then?

Looks good to me! Keep going. Do NOT flush! Simply finish them out!

Agreed, they look great, not long now, ride them out

Sweet, cheers guys. It's my first hydro drip, I love this method, far easier than soil or dwc. Going to move to photos next.