Leggy feminized seedlings, with a long pale stem and tiny leaves, are nearly always a lighting distance problem. The sprout is stretching toward a lamp that is too weak or too far away, and adding hours does nothing if the intensity at the leaf stays low. Schedules of 18/6 or 20/4 for this stage are given at https://queenfeminizedseeds.com and either is enough, provided the light actually reaches the plant. Lower the lamp or raise the pot, and bury the extra stem at the first transplant.