So on forum advice, I buried my leggy seedling a bit deeper, and it's doing very well. Got more bag seeds from a different source, and they've come up and are growing quick! The original seedling (see 1st pic) has slightly lighter green leaves, and "white" stems. The other type (see 2nd pic), is supposed to be a Chocolate Kush cross, and has deep green leaves and a red stem. All the new ones popped up this way, including dark color on the outside of the cotyledons, so I'm not worried. My question is, is the "white" one typical of certain strains? Or is the dark color more uncommon in seedlings? Both pics were taken under the same light, at the same time of day, with the same camera...