Some say flush, some say don’t. Me, I flush, two weeks before I only give 0.5ml of pk with base nute at 50%, final week flush till Run off day one, then again 15 mins later. Do the same 2 days before harvest. Leaves will turn and go yellow as the plant is drawing what it needs from the fan...
Late starter here in the uk but not too long now, they’re RQS critical and sweet zz auto by RQS
using shogun pk and some organic tomato feed with sea kelp extract, have a good weekend folks