Seedlings not standing straight. Just want to know...

This is typical Your light is a lil lower than what your plants require (ppf wise) Very simple mate. They're in small pots now. When they grow up some. When u uppoting to a bigger pot. (Main stem should be green) You can then place them deeper and there long stems can be covered to your desired height. As for how they are now. You've 2 options Place a stick into ur sub. Or make an X frame on top of your pots and you'll be able to stand them up without sinking sticks to hold them up. As if you leave them lying down they'll continue to just stretch . 4-500ppfd 12-15k lux for seedlings. Good Growin