lol thanks STL... I forget things like "he could be baking it" because, you know, after awhile you don't even think about it because, well, I've already fucked it up that way and just don't let it happen anymore
Its nearly dead. The reason is lack of N, yes seedlings need N added when there is nothing to feed it in the medium.
3 weeks old? its the size of a 3 day old seedling.