I use a simple formula…
2 mill bloom , 4 mill micro , 6 mill grow… in veg
Transition , I use 4 mill bloom , 4 mill grow. 4 mill micro…
Mid flower to late flower … 6 mill bloom , 4mill micro , 2 mill grow…
Always add 3 mill call-mag until 5 weeks till estimated finish…if using ro water with a ppm of less then 25 ppm…
Always 2 mill hydrogard and orca … up till 4 weeks of finish…
Depending on silica supplement you use , 1 to 2 mill until 6 weeks from finish…
Diamond nectar… 2 mill until 4 weeks till finish…
All measurements are to 1 gallon of good ph water of 5.5 and no more then 25 ppm to start with… 
Change at least every 14 days depending on size of system… (ie) how much water it holds…
5 gallon buckets… Need to change out every 7 days with new…
