Yellowing on both ends...

Whats going on?

I think it's nute burn.

What marie said

Its still the first 2 weeks so I didn't add any nutes yet.

I had the same problem with my plants, without adding any nutrients..
What are you groin in?

Is this a soil grow or hydro? yellowing of the leaf tips is usually N deficiency.

whats your ph

5.5 ph dwc hydro

Im sure you thought of this but are you using tap water? I grabbed the wrong water for my plant that didn't have time to evaporate the chlorine and the chlorine burned the tips similar to this. Hope this helps!

well I might switch to soil. DWC is just too much for me to start with.

Bring ur PH up to 5.8...locking out some elements there

Keep humidity up (dome), but keep rockwool slightly damp. If you have sprayers below, limit the watering. You don't need so much with rockwool holding water.
Without knowing your setup... allow for the seedling to recoupe until it can acclimate. You can take it out of the dwc for now, and add back in later. only water as needed - where wool is almost dry and not hardened like a dry sponge.