Looks like faciation although the few times I've had plants with it it usually only appears when the plant is a fair bit bigger than that. Double the plant . NiceWell CPK is a retard for sure
She should be a fun pheno to follow
Topped herself and split her main stem, I cut off the top growth to let her shine
Think they are on day 14 or 15, but behind a bit, I usually top at day 15, , all have roots hitting the water as of yesterday besides a Candida