Sling not willing to eat, just molted

[DinoDavid]

I have 2 tarantulas, both supossely Auratum, one has never rejected food, she is so fat right now, she also made her little hole in the ground, but the another one still on the surface and a week ago she hasnt eat anything, i tried with fruit gnats, grasshoopers, and now with red runner cocroaches, this 2 without head so they wont hurt the tarantulas, she used to at least eat the head, her ophistosoma is so small and im kinda worried, see the pictures below, the last ones are the one that is not willing to eat, and the first one is the another tarantula that looks so healthy and fat, wonder what can I do

 

[Konstantin]

Hi
roach os on the large side for the sling.
Maybe cut it further so portion is more or less the size of your sling abdomen and offer every week leaving the pray for 24h.
If it has not have any underlying problems like sucking stomach issue or anything else it will eat when its hungry. It has water available too so not much else you can do.
Unfortunately not all slings make it.
Having said that yours doesn't look dramatically underweight yet.
Best of luck and keep us posted.
Regards Konstantin