Deformed seedling

Usually from poor genetics and or from older seeds. might as well toss it .

The first leaves on my seedlings are always weird. I think I am overwatering them. Once true leaves come in they all end up fine

This seeds is suffering serius roots burn , probably due to the high ec in te soil, can u check the run off ec ? Have you used a premixed light mix , all mix or what else? Have you already tried to plant other seeds in this mix? This one is seriously injured, you can flush a little and let the soil dry out and wait some times that the plant will recover but in less than 2 weeks from seed you will have a better plant, this in 2 weeks is not sure that will be good. Hope to be clear and useful

Just start again with the best possible quality potting soil you can afford, I don't think this plant will ever be healthy. Not all seeds will grow properly and this is one of those. Planting a few spares is always advisable, in case this sort of thing happens. The soil is generally the cheapest part of any grow and you can't grow prime plants in cheap dirt. This seedling is so far behind, by the time you "rescue" it, a newly planted seed today will be out performing it by miles by the time, and if, this plant does ever recover. Soil looks uber wet too, you only need to re-water once the top inch or so has dried out, and this may be anywhere from 1-7 days. No diary and/or without a lot more info, makes answering this question more specifically nearly impossible. Hope this helps, Organoman.

Looks like it's dying for some nitrogen. Also, is the medium overwatered?

Likely your ph is out in the soil. Soil ph tester and adjust to proper level before planting. I would get some good soil to transplant into instead of trying to fix the planter. Cheers

Just guessing that your ph is off in substrate. Or lack of nutrition. or light too close. Not much to go off of. My guessing to your problem in order on limited information. Good luck

That's an issue that isnt going to correct itself. Whats the PH of your water? How much and how often are you watering? What soil are you using? Is it new? If you can I'd make a diary so you can get help. That isn't genetics though, that's something wrong.