Hi mate,
It is not splitting. This is just the plant secondary nodes on branches. They don't always grow aligned but eventually line once it matures. I hope this helps, good luck and happy growing
@Bongtokinalkoholik1605,salut et encore elle et partit dans le jardin d'un amis finir la floraison c'est un monstre je vais essayer de passer dans la semaine faire quelque photos impressionnant pour une auto peace
Considering where she's growing it looks quite good, I'm doing a similar grow as an experiment on a windowsill and it's developing better than I'd expected, just one tip for you, try lining a box with foil or some other reflective material to maximise the light