White Widow seedlings dying

So these 2 are about 3ish weeks old are turning brown and the leaves are getting dry and crunchy/falling off. My partner did give them some nitrogen at week one a little too much but we flushed the cups. There is a total of 4 white widows one looks great, one so/so and then these 2 which are getting bad by the day.

Help please? Im thinking nute burn? They are under t5's with about 30%ish humidity and 66low75high tempatures

planted in black gold seedling mix
given 800ish ppm fox farm grow big at about week one then flushed
given 550ppm at week 2 of same nitrogen


Any help would be great thanks! Im guessing my partner fried these babies eh?

Nute burned..I don't feed for 3 weeks. Not alot to do..just water and ride it or repot. Maybe wet too.

your partner gave them some nitrogen in week 1? That might be your problem right there, A seedling has all the nutrients it requires for at least the first 2 weeks of its life, so no need to fertilize at all until 2-3 weeks, and then it should be 1/4 or 1/2 the strength, see how the plant responds, then slowly up the dose.

Im on week 3 from seedling with greenhouse white widow, I must say the leaves started turning on me as well. I didnt feed it until a little after 2wks. The things were starving for nitrogen. I whipped up some dynagro and GH micro for more nitrogen and the yellow leaves are still yellow but my new growth is green without issue. It must be white widow because everyone says dont feed until 3 wks but this thing was starving from the get go....i hit it with 770 ppm and the newgrowth was green ( too green because i loaded it with nitrogen) so the next feeding i watered it down with plain tap ph'ed to 5.7 and brought ppm down to 630. Leaves are growing extremely quick now and i am waiting for the reaction from the feeding today...should be on the up and up. Good luck, im new to growing but im going off the "watch your plant and dont worry too much about what you read" plan. I guess if the plants asking for food, feed it.

Yea my 5 northern lights planted and feed all the same are doing great. I just put them in to a 1gal smart pot with fox farm ocean forest soil. But out of my 5 WW seeds 1 didnt even make it past the first 2 leaves now out of my last 4 only 1 is looking good. I went ahead and mega flushed them until water was running out the bottom of the cup. As long as 1 makes it I will have a mother.... just hope the dna of it is a good mix.

Never grown WW..maybe its a picky strain. Gonna have to try some in a round or two. Notes say it moderate in difficulty but supposed to clone well.

Yea im still trying to get the whole cloning thing down. First attempt I was 2/6. I have 4 cut from my bagseed mother that are 4 days from the cut hoping they all root =) But Like I said If one WW makes it im good... well as long as I get cloning down