First Indoor Grow

Hi 420, Im new to here and kinda trying to find my way around. I have recently started my first led indoor grow(mars 300) and awaiting a znet6. I have one plant thats either lemon haze or blue cheese got them mixed up and they where bag seed and a new just popped amnesia haze, within 24 hours of planting in soil I came back and was already nearly 2" tall and root popping out the bottom. The bag seed has started off ok, I noticed it started growing 3 sets of leaves and from what I can now tell the new side shoots also the same. Does anyone know if this is maybe a strain thing or what, as Ive never seen this before, Ive seen a twin but never this lol. Thanks. Weavie