My 2nd grow . Critical fast bud and Zkittles

So im starting my 2nd grow of critical fast bud and Zkittles even tho I still got 6 plants in flower but I jus couldn’t wait. I Gabe it a month or so give or take a few days to start m 2nd grow… But I have the Critical Fast in CocoLoco an the Zkittles in Natures living soil an oceans forest/Happy frog. Funny how the criticals are taking off n I love it as the Zkittles are right behinds them doing quite well

Also do you have or need or should flush plants an in doing so does it really better the quality??? Please someone give me their opionion I’m trying to find out if flushing is necessary. Can someone help me out???