From seed sprout.....
Calmag 200ppm . A and b canna 1.9ml per liter
Dilute mix to 300ppm and slowly dilute less until day 14 which will be 700ppm full veg strength without need for dilution.
Ph 5.7-6.0
Buffered coco with 800ppm canna calmag ph 4.8 . Canna calmag rises by itself in ph over 24hrs so no need to ph up or down or the buffer won't be true .