One of my dats started to get a swollen abdomen a few weeks ago . I went to my LFS , showed pictures and tested both bactericidal and worm -killing medicine. But it didn't help (he has instead only become more swollen ) and now I believe that it's it's too late to save him. But I'm worried about two of my other dats that they may have gotten the same thing. What could it be and what can I do about this? By the way, they are eating and seems to be doing relatively well. The two other dats aren't as bad as this one, it looks like they have only eaten a bit too much. But I don't want to take any risks.