I'd start feeding somewhere around 12-14 days depending on when you're first soak of the pot was.
I usually steadily increase the amount of water I feed the seedlings to soak an ever-increasing amount of the
soil and therefore expose the roots to the nutes that are already inclusive in the Happy Frog. And HOPEFULLY
that equates to being able to feed a nute amended feed just before the 2 week mark. The key though, always,
is not rush the feeds....let the pot dry out (obviously, not completely at this stage but where it gets to lightly damp
as opposed to still wet - you sort of have to envision what size the tap root and root mass are at that point)
and be patient about it. One always has a game plan formulated before it's time to put it into action...
the key is having the patience to wait until it's the right moment.
Something I personally fail at regularly
