HELP Baby Seedlings Leaves turning Yellow

I'm gonna say it's not rooting because there's something about your hydroton it doesn't like.

thanks, I was worried I might have plugged them in too soon, should have let the roots reach out a bit more I guess, any solutions?

Anyone? I am really worried about my babies

Please save my seedlings!

Something went wrong with the app of nutes, calculations whatever its burnt and as good as dead bro, be more carefull ,is that coco?

Even though the yellowing occurred before the notes were added? Any idea how to avoid this in the future? Thanks!

Did you feed your plants r/o water or tap water prior to adding your nutes and was it ph'ed? Also you don't need to feed your plants any nutes til the second set of leaves. It looks like you have your seedling in a rapid rooter. Did the roots root out of the rr before putting it in the window farms?

No I plugged it Ito the widow farms when I saw the second set of leaves, the roots did not develop at all the seedling died and molded and when I checked the Ed there was a single thin strand of root inside, the other plugs have white healthy roots poking out all over the rr, I guess next time I should let it germinate longer before plugging it into the system? The water is distiller by the way, next time what should I use for the the seedling and when should I start nutes? Thanks!!