First LST for a baby looking good , very stretchable (2 days after watering).
Well, now I think second plant is 2 days away of bigger sister (sometimes it could happen) so I've calculated her age wrong. This is cause even after breaking her seed she needs some time to start absorbing nutrients. Some growers think it because of stress or something , chill... you just did not calculated this time so the difference would be 2 days