Jen has made a good recommendation. Since these frogs get quite large, you should keep them in a 20 gallon tank. Right now, a smaller tank shouldn't be a problem.
Make sure the water is well aged, that is all the chlorine and other chemicals have been removed. Clean rain water, bottled spring water (NOT distilled or mineral) or treated water would be fine. I treat the water using Stress-Coat, but any good tropical fish water conditioner will work too. The ideal water temperature should be about 20 degrees C (68 degrees F).
No problem, please ask awayThere are plenty of people on the forum that will be happy to answer any questions you may have.