No way to tell their sex yet. If you want to know, later on when they're a bit bigger you can cut a clone from each one and put them under 12 hrs of light for a few weeks and they'll show their sex.
They been in veg about 2 1/2 weeks now ... and don't plan to switch them for a few more months the lights are just off in the pics... i guess i will find out then
if u gonna wait, just wait until u get like 8-12 nodes, then sex them. then if u like veg more, after u have determined male/female u can revert back to veg