Skinny, tall, seedlings

[Rusty Trichome]

I understand my problem is lack of light, or a light source too far away, but here's my question about tall skinny seedlings...if you plant them deeper, into a bigger pot, will the stems, that are under the dirt, grow roots along that stem, like a tomato plant does? Or will the stem just rot and the plant eventually die. I have some seedlings that are so tall and thin, but (knock on wood) are not top heavy AS OF YET, and I don't know what to do with them.

Seedling Stretch Fix...

I do use a fan on them, to try to strengthen their stems. Also, when starting with seeds, what can I do to keep the plants from getting tall and thin before they can get thicker stems? Keep them in the dark for awhile?

Darkness or insufficient light makes 'em stretch.