Coco 500 ppm in 1000 runoff do i need to flush? 5-6 week of flower???????????????????

HEY GUYS NEED YOUR HELP AGAIN NOT TOO familiar WITH COCO OR PPM FIRST TIME WITH BOTH I STARTED CHECKING MY RUN OFF AND ITS COMING OUT DOUBLE I WATER AT 500 PPM RUNS OFF AT 1000PPM I AM IN THE 5-6 WEEK OF FLOWER. SOME ONE PLEASE TEACH ME SOMETHING NEW

Are the tip of.your plants burning or any funky shit going on with your plants?

& LOL i love how every word is capitalized except for one

FLUSH THAT BITCH...... I would pour at least 3-5 gallons of 5.9 PH'd water through her daily for 5 days..... Then start with 1/4 nute strength... YOu are in Nute lock.... You should feed once every week with WATER ONLY when using coco... YOu need to completely flush out any salt buildups.... If you do that, this will NEVER happen again