He will eat, just give him some time to get adjusted, then he will feel more comfortable.
When I got my frogs for the first time, they wouldn't eat for about a week.
Also, after I took one of my frogs to the vet for a prolapse, they said I should try and avoid feeding him until I got the stitch taken out... So he ended up not eating for a little over a week.
Just make sure u provide him with active crickets so once he is in the mood to eat, he can find them


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