So your saying not give nutes until around 3-5 weeks have gone by from transplanting correct? So week 5-7 is when to start adding nutes at around 1/2 dose?
Something like that.
Since you just uppotted and your close to their flip I would just wait til their stretch is done and go straight to your bloom mix. That's the time when they are the most hungry and your the least likely to over feed.
Biggest reasons I like to start nutes early is so that I can build them up slowly to prevent any shock, any nute burns are minor, and I'm less likelyto throw my ph way off.
Full feed on my nute line is like 33ml/gal I don't think I ever go above 24 and
Even in the early stages the bottle suggests 12 and I start with 4 and take 6-7 weeks to build up to 20ish. I go slower with my photos bc I find it safer and I'm in control of the flip. I go faster with autos bc I'm not in control of the flip and need to make the most of every day in veg