You could put a nice sized water bowl in.

What type of water dechlorinator do you have? The chlorine and chloramines in tap water are toxic to frogs, just as they are with fish. Use treated water for the fogger too. You can use distillers water in the fogger, but not in the water bowl or for substrate.

Do you use calcium with vitamin D3 to lightly dust her food with? This is necessary too.

She is going to grow big. Perhaps you could start looking into a bigger tank for the near future? Maybe with a stand? That would be nice .

I have a big male albino American bullfrog. We call him Bully . We love him . Did you name yours? Yours appears to be a female from the size of her tympanum (ear). Females have smaller "ears", males have tympanums larger than their eyes and croak.

This is my big boy ...