Thanks for the replies!
I'd read that females can croak too- they just don't expand their croak sac when they do. Thanks for the confirmation, I was hoping for a male!
I wasn't planning to feed him today, I fed him the first day just to see if he would eat, and yesterday to get him started on a more regular feeding schedule.
Is distilled water not okay for soaking? I've been using it for both misting and soaking, because I couldn't find any dechlorinators that weren't meant for fish (they all advertised "slime coating" which i thought might not be okay for the frog ). I looked in 5 different pet stores!