Look, I think ours were born about the same time... mine have molted 2x since leaving moms back... They are in 75* constant and kept moist but not soaking.... if it starts drying out i get it wet again.. but not so much as to still water lying around.. all 30 of them are doing fine.. (other than 1 i can't find, but it's a tunnel system that runs pretty deep) I seperated them into 10 packs to better keep track of them eating and molting, and next time they molt i'll split them up into 5's and get them ready to sell (by that time, it will be nicer shipping weather).
Overall. the simpler you keep things the better.. too wet is just as bad as too dry... sometimes things just don't thrive... I always have a gecko or 2 that just doesn't live.... the hatchling mate will be fine, eating, pooping and growing.. and then, one of them just decides he doesn't eat or poop.. and dies.... they're simple organisms... and they do this.. and the ones that don't survive (especially in arachnids) becomes a meal for the ones that do.... all in all.... there's not much you can do but give them the best care you can possibly do.
Overall. the simpler you keep things the better.. too wet is just as bad as too dry... sometimes things just don't thrive... I always have a gecko or 2 that just doesn't live.... the hatchling mate will be fine, eating, pooping and growing.. and then, one of them just decides he doesn't eat or poop.. and dies.... they're simple organisms... and they do this.. and the ones that don't survive (especially in arachnids) becomes a meal for the ones that do.... all in all.... there's not much you can do but give them the best care you can possibly do.