Plant health question. Help?

Hey there. I am running a DWC bubble bucket and two of my seedlings had lost there true set leaves due to nute burn (first grow). They are about 3 inches tall and still have the original leaves from sprouting (the rounded ones). They are green and healthy looking. Same with the stem. I have done a flush and changed the ppm to 200.

1) Can the plant make a recovery and start growing?
2) The stem has a tiny brown tip on the top, would it help to slice it off to promote growth?

Any tips?

200 views and no responses? Come on peoples..

If your saying that it only has a stem an no fan leaves, I'd say your chances for survival are nil...sorry

The first set it gone, yes, but the two original leaves are green and healthy. The plant cannot continue growing?

I dont think anything will grow back. Those 2 rounded leaves (the cotyledon) are just there to feed the plant and give it a little photosynthesis energy while the first set of leaves grow. Without the first set of leaves,theres no new growth point on the plant anymore.

You should start them in moist (not soggy) rockwool cubes very low ppm (100- 200) and wait till they are fully rooted and established before putting them in a netpot/dwc.