Not absolutely, but it’s finickier than the other approach (pinch off the weaker plant in each cell, up-pot when the cells are root knit). Sowing thickly and separating tiny is often called “pricking out” if that helps.
If you want to separate, don’t let the cells get root bound.
Nb: stem more vital than leaves, and as fragile when tiny; handle by leaves or root ball.
Not absolutely, but it’s finickier than the other approach (pinch off the weaker plant in each cell, up-pot when the cells are root knit). Sowing thickly and separating tiny is often called “pricking out” if that helps.
If you want to separate, don’t let the cells get root bound.
Nb: stem more vital than leaves, and as fragile when tiny; handle by leaves or root ball.
Apologies if this was not a request for advice!
@yo_scottie_oh