Ok. So Hades is in a 2 gallon, heated tank with regular water changes. The water is treated with Stress Gaurd, epsom salt(1 tsp per gallon), aquarisol(for parasites of any kind), and a thing that removes ammonia, nitrites, nitrates, chlorine, chloramine, and heavy metals. The tank is kept at a steady 78 degrees farenheit, a little is changed after every feeding(to remove any excess food) every day, and a 50% water change every other day because the tank is unfiltered and I'm obsessive. Lighting is excellent. He eats a combination of baby brine shrimp(freeze dried), tetramin betta flakes(which he usually ignores, but I'm trying for variety here), and freeze dried blood worms. Once in a while I'll feed pellets, but they don't seem to care much for those either.
Symptoms: When I first got him, he was swimming really spaztically, like it took effort to go very far or fast. At first I attributed it to the length of his fins(he's a half moon "double" tail(I'm 99.99% certain that his tail fin is indeed in 4 sections, rather than 2). No fin rot, no signs of parasites, no torn fins or any other signs of ill health. He loved to flare up at fingers, other bettas, dust motes... Anything. So I really didn't think anything about the spaztic swimming. However, his swimming has gotten even more spaztic, yesterday he started floating on his side. Today he is floating on his side, swimming on his side, unable to go to the bottom of his tank where his hidy holes and shiny objects are, and generally listless or acting like he's struggling. His tummy is slightly large, but not extremely so. I was told this could be a sign of constipation and to treat him with the epsom salt bath. But now... I want to cry... He's pineconing. Not a lot... Just enough for me to notice it. But the scales are definitely raised... I've read pretty much everywhere that once they start this, there is no cure. They die. End of story. Please, if there is ANYTHING I can do to keep it from getting worse, to try to save him, tell me. I'm good at following orders. He can barely get himself upright enough to get air and is floating at the top in his quarantine cup. I don't know what happened or what I could have done wrong, I don't over feed(yes, he gets all those foods, but never at the same time, just a pinch of whatever a day, or I might mix some of it up in my mortar and pestal and feed him a pinch of that, dampened with water) I keep his water warm and treated... Is there anything I can do?