i use coco with good results

ph range 5.8 - 6.5 max mines 5.9 - 6.1 allways

start your seeds in root riot cubes and just add root juice to the water

then when they go in the coco mix theyre ready for 1/8th strenth nutes

i add perlite and hydroloclia to bulk my mix up but its not imperative

allways use coco nutes eg: canna coco/ monkey juice

cannazym or similar is needed to reuse your coco

heres a pic of my t44 grown in coco and the root riot cubes