Thanks for the aspiration procedures, craig121. I'll bring them to the vet with me in case they don't know.

Terry's Instructions was what I was following for treatment. They have helped at least a little. Her belly initially felt very taut and full, but after giving her the salt baths, clean water and using Maracyn Oxy for 5 days, it feels squisher (even through her belly still looks about as big).

Perhaps I didn't continue the salt baths long enough. I will start-up the salt baths again.