Need more info. Whats your growing medium? Are you using ph water only or adding nutrients? What kind of lights are it under? They are droppy so could be over watering but they also have some yellowish spots. Read this resource for more info on common issues with pics to check against your own. Make Seedlings Grow Faster! Avoid Common Problems & Mistakes | Grow Weed Easy
Soil for potting. LED AND CFL lights. Watered by phed water and I'm adding nutrients ppm about 300 to 400
Update soil was water logged and I used this to blow more air and dry the soil under without harming the roots after transferring it to a bigger pot. 3 new seedlings sprouted from seeds I thought had died. And the original one grew stronger