Should I be adding cal-mag, having issues in early veg and not exactly sure what to do. Any advice would be greatly appreciated.Mills is the shit, really liked the A-B and Start-R... I ran the whole line good results. Great for people that don't know what their doing because it's super simple. I slowly started cutting out A when I started using the PK. Make sure to do straight water in between feeding and flush well. The nutrients stick a little. I also add silica and a sweetener.