Seedling in trouble...please help!

Hope you can help me out.

I have this seedling that was germinated but has stopped gowing. It has been 2 week since it sprouted about hte rockwool.

I looked last night and there are just the tips of the roots coming out of the bottom of the rockwool.

The leaves are starting to turn a lime green color and it is starting to spread to the new growth.

what is happening here? I have this in a DWC with bubbles coming from underneath. I am afraid to use nutes to help it cause I tried it a week ago an it go some nute burn (as you can see in the pict).

Any ideas how I can save thie seedling?
Thanks in advance for your help, RIU !!!!!

I had the same problem with a cpl of my little guys, For the first two weeks i was not told to use any nutes b/c the plant feeds off itself? after two weeks use nutes, like a 20/20/20 but it could be a nitrogen problem, I'm not 100% sure so wait for a cpl more answers

pH inbalance.

you are watering it with tap and the ph is 8.5+

its got a nute lockout because the pH is off.

it wouldnt matter if u hit it with nutes, cuz as long as its in a lockout, it will not draw up any nutrients.


get ur ph straight, then start nuting it with a VERY low fert, like alaskan fish fert 5-1-1