A friend of mine just got into the Betta keeping world. Her new Betta, Ron, became ill as of yesterday so she came to me for help. He was lying on his side near the surface of his tank, being very lethargic. He looked a bit paler and definitely wasn't being his usual flashy gorgeous self. His fins weren't clamped. He was maybe a tad bloated. He would only swim right side up if she disturbed him. I scoured all the websites on care for Swim Bladder, which was my first assumption, and this is how I instructed her to care for him:
•Put in 1 gal hospital tank with clear bottom (to see poo if constipation was the problem) and a plant to lay on
•Water change with aquarium salt added
•Fast him in case of constipation
•Keep warm and watch
She did all of this. He got progressively more lethargic throughout the day. The only swimming he would do was upside down. A few hours later, he stopped breathing. There is no evidence of external parasites, he looked to be in great health even in death. No pine-cone like scales or heavy bloating so I don't think it's dropsy. He couldn't have been depressed because he was eating like a pig the day before. No fin tears or fungus spots. I just don't get it. I've never heard of a betta that was perfectly fine, had Swim Bladder symptoms for a day, then perished.
Poor Ron, he was a gorgeous and flashy red double tail. What do you guys think happened, and did we do everything we could to help?