Gail:

I didn't realize there was a U.S. distributor for NutriBAC, good to know and thanks! I would think that NutriBAC would be a better choice since it's cheaper in the long run and having a "dose" every day is not necessary. As long as your frogs eat there shouldn't be a problem.

A probiotic along with good husbandry should keep your frogs healthy for many years.