This is the schedule I followed for the fox farm trios. The PPM was before feeding not a run off measurement. I haven’t done a runoff measurement because I haven’t fed enough to get runoff yet.
I also started the feeding schedule at week 2
it looks ok then. it might be a little ahead but it's not a bad thing. didn't know you were on 700 scale either. 500 is kind of north american default. it's spot on for a 700 scale ppm.
i still don't like tsp for a measure. or are these all dry nutes ?