Loose stools?

[Mentat]

...Is it normal for some frogs to go more often than other? ...

Yes, it is. Think would just get a fecal done and if negative; then it's loose stools due to diet. However you could find out nasties in it's intestines (worms, protozoa, bacteria) and can deal with them before they get out of control. Medicating a frog that eats it's lot easier than when it is not. The fecal can be done locally by a veterinary or you can contact Dr. Frye and see if he does them by mail and how: Milan Area Animal Hospital, David M. Frye, DVM, Veterinary services in Milan, MI, Home page . Good luck !