coco does best with multiple daily feedings. i used advanced 3part base and additives for years with it but never tried the ph perfect stuff. don't treat it like soil. i wouldn't use just flower nutes either. you could get by with a sample size bottle of veg nutes. a super simple nute that does real well in coco would be pure blend pro veg and flower, botanicare liquid karma, and some sort of calmag additive. i cant give much more thelp than that because i've never tried micro grows.
i can recomend a good coco though that a buddy turned me onto. botanicares cocogro 5kg bricks have been great, i have never had to flush it before using like other coco's and its very cheap and reusable.