Stretching

Move the light closer, and do a repot to final pot🙂 when some of mine stretch i dig them down os there is about 3-4 cm above the soil🙂 Good luck mate 🤜🤛😎

Check your light manufacturer for a recommend distance from seedlings, they are generally accurate.

I would get them into the ground right away. Then, if you have other things growing in your tent and can't lower the light you can raise your sprouts up on bricks or blocks. Also, long and thin may simply be the variety you are growing. Some just have longer stems.

they will stretch if there is not enough light. try to have the light 30-40 cm above the sidlings. Also, you can transplant them inside a little bigger pot and make the soil level higher so that the part of the stretched stem is inside the soil.