Week 7 flower! Last 2 weeks. Need Help!!

I am on week 7 of flower. They are one blue dream and one critical plus. I am wondering how I should water them the last couple weeks. Should I completely flush them and then just give them water with no nutes for the rest of the time? Should I not totally flush them, but give them no nutes for the remaining weeks? Any info will help! Thanks

what i do is only give them water the last 2 weeks and a few days before harvest i flush them.

I believe there is a nutrient you can give while flushing. Made by botanicare wih grapes on the front?? New to this so that's just what I've been told