Why are my Cotyldons droppy?

this is how it looked yesterday bending up to the light.


today it looks sad,the Cotyldons are stiff but droppy.

The bottom leaves are still hard from being against the shell, i'd wager the shell only came off a day or 2 tops ago, they are usually hard and bend like that for a few days until they get much larger... Plant the seed deeper next time, its so shallow I can see the tap root standing out of the cube =P As the taproot turns into stem it will get sturdier. "Pic 1 &3" thats why they look like they are growing diagonal, you can cut a cube into a thin slice say 1/5 the size of a normal one. Then cut a little slit in your piece of cube slide it on top of your 1st cube, It will add support and cover that delicate tap root.

when should i throw it into soil? they are about 2 days from sprout.