My betta, Diego, has been through fin rot and swim bladder disease but I don't know if he's gotten over either! The fronmost part(not including his head) of his body looks bloated, he rests under the leaves of his fake plant or just at the bottom of his tank, he's started not to eat as much, and, along with his pectoral fins looking a bit tattered, I swear he's continued to "fall apart" even after his fin rot went away(or so I thought). He's in his tank alone and I'm not quite sure what to do for him. Any suggestions?