Hey pete, I use straight coco so I'm not too sure what to recommend with this stuff... But if you're using the AN pH perfect nutes you really shouldn't have to do anything different than what you're doing now. When I switched from promix organic to coco the only thing I changed was starting first feed at day 5 instead of 10. I don't ever check or adjust the pH with the AN nutes. Good luck with your grow buddy.