My sister has 3 frogs. They were given to her as a gift 2 years ago and she was told they were dwarf frogs. When they grew to their current size, we kinda figured out they weren't dwarfs but clawed frogs.

She has a longish tank and after a daring escape a few months ago, a screened lid on it. She feeds them bloodworms and brine shrimp. I think too often but I can't tell her anything. (She's bipolar and it's just not worth the fight.)

Tonight, she went to feed them and noticed that one of the frogs is really puffed up. As she puts it, he kinda looks like the frog from Shrek that looked like a float balloon?

There are no vets near here that deal with frogs and she couldn't afford one even if there were. I know that she doesn't change the water in the tank (only once since I've been here and that's more than a year now) and she's worried about it.

Any ideas on what it could be and what she might be able to do?

She treats her two dogs better than herself but I think she just doesn't know what to do with the frogs, period. She relied on the friend who gave them to her for help and he's just never around anymore.

Sorry to run on. Appreciate any advice anyone could give.