seedling phase

I germinated directly In pre soaked root riot cubes, 3 days after 4 seeds sprouted and over a week later another 2 seeds germinated. Would I be okay to keep them or should I instead just have the 4 plants that have already been transplanted and discard the newly germinated seedlings? My aim is...

Hello all! I'm just 8 days along with my third grow, and just moved my seedling from a rapid rooters in a humidity dome to a jiffy cup. When I picked up the rooter I saw several little white roots poking out of the plug kinda all-over. My question is, how fast do the roots grow? Ive looked...