I've been using the 3 part Fox Farm nutes in a soillless medium (Promix BX) for my current grow. Thing is, the schedule only goes for 8 weeks of flowering and 4 weeks veg. This leaves me to guesstimate the correct ratio of nutes for longer veg and flowering times. Was wondering what would be the best way to go about this? I've been sticking with the week 4 schedule for extra veg weeks and week 12 for the extra flowering weeks on my Sativa dominant plants. Seems to be working for the veg but not so sure for the flowering as my late bloomers are not really filling out more and leaves are yellowing more rapidly.
