Yeah mate, I think you are putting too much nutes too early..
that pic of the 1 week 2 day, so far has had a VERY low dose nute, one single time, of Peruvian Guano, Fresh Farm @ 1 teaspoon 1/2gal, and Silica Blast @ 1/2 tsp 1/2. From the 1/2 gal container it got like 1/16th of the juice in there only. The rest is simply watering it normally when you notice it looks dry.
I dunno on the advice I have been seeing to keep nuting it up etc but some strains can't handle this. And if this is your first grow -- you are better off simply letting nature take its course while you are learning the ropes.
My suggestion? Scrap this plant - it's not going to make it. Germinate another seed. After the seed has a root tail, simply put it in its growing medium till it pops. When it pops stick a light on it watering gently for about a week or till the second leafset has formed (not the one after the initial opening, the ones AFTER that (it should take no longer than two weeks max?). At that point SLOWLY put nutes in. Don't let anyone tell you what amounts to put in this has to be up to you. Don't fret and don't over nute.
My suggestion would be is to give them a small amount of something. If it works, give them incremental amounts. Your goal isn't to over-feed the plant. It's to nurture it and simply help it along.
I have attached a few shots of my current seedlings that are going following the advice I gave you. I've been reading this thread since the start and just didn't want you to lose any more time and seed.
Sorry if Im out of place! I hope I helped!