Need some advice

Hello I started 3 feminized AK47/WhiteWidow seeds a couple weeks ago.
All three popped one is kicking ass one is doing ok one Im worried about.
All three are in ffof under the same light same watering etc.
Will the tiny one come around or should I write it off?

The close up is the one I'm worried about

FF OF is really hot stuff for seedlings. No nutes for awhile. Are you overwatering it? Do you check your ph?

Check ph before and after every water . I cut the ffof with perlite and straight potting soil ( no newts added)
So its about 60%ffof 20% soil 20 % added perlite. I plan on starting my newts next week which will be week 4.

Also I only water them when the soil feels dry at about 1.5 in.