Should the seedling's stem be buried all the way up to the cotyledon leaves ?

[u1556]

The stem on this 3 week old autoflowering seedling seems a bit thicker above the cotyledon leaves ( the very first small round leaves that sprout ). Below the cotyledons the stem is thick about 2mm, above the cotyledons the stem becomes thicker with 2mm more.

So I am wondering should the stem be buried with soil all the way up the cotyledons where it starts to grow thicker ?

 

[indica vet]

The stem on this 3 week old autoflowering seedling seems a bit ticker above the cotyledon leaves ( the very first small round leaves that sprout ). Below cotyledons the stem is thick about 2mm, above the cotyledons the stem becomes thicker with 2mm more.

So I am wondering should the stem be buried with soil all the way up the cotyledons where it starts to grow thicker ?

no,support the plant and it should grow out no probs