I'm glad to hear that. Many people keep African Clawed frogs in conditions that are much to small. In fact most expeirenced owners recommend taht while 7-10 gallons of water per frog, a twenty gallon tank is really best because of two things:
-Length for swimming
-Frogs are less stressed in groups

Often when kept in small containers african clawed frogs become stunted and develop various problems. So i kind of wince when I see people suggesting taht you can fit three ACFs into a ten gallon.