I got my betta in April. He was always active and curious! Dark blue with red. Always so excited when I wiggled my finger at him and wanted to see what I was up to. Loved watching everything and anything! He has been sick for at LEAST three weeks now. First, I noticed he was lethargic and randomly would jump out of the water (the tank had a lid), He would be still and all of a sudden it was like a big twitch at 100 mph. His fins were decaying too. I had him in a 1.75 gallon tank - no filter. Used to have a heater but the water looked really foggy whenever I used it. I'd do 100% water changes once a week. Fed him two pellets a day - one in morning and one in evening. He had white on his fins. Went to petco after researching thinking it was internal parasites and tried to buy, erm I forgot the name it was something like Quick Cure and they discontinued it but had a similar product Herbal Betta Revive by Aquarium Solutions the man told me works. After about four days it did nothing and if anything he was getting worse. I also tried using Bettafix by API which also did nothing (not at the same time, i didn't want to mix!). In fact, I stopped when I came home to my betta floating on the top of the tank with a bubble on his side! I FREAKED out and thought he was going to die. I read it was swim bladder and didn't feed him for about 3 days - it went away very quick! I started feeding him flakes every other day but he had a lot of trouble eating them, so I just soaked his pellet before giving it to him. I went and bought a 5.5 gallon tank with a 10i tetra whisper filter and an HT10 50w heater that both accommodated his tank size. I did aquarium salt treatment for about 10 days and PolyGuard freshwater medication (both starting at the same time) and I read that having a cartridge in a filter takes out the chemicals but I stopped using the filter because the flow of the water scares him and stresses him out more! So I did more frequent water changes and would take out his poop when I saw it which by the way he RARELY POOPS but he isn't bloated at all! I do a 98% water change once a week in his 5.5 gallon but he ISN'T improving. He seemed to be a lot more active when I was doing the aq salt treatment (just the first day after water changes) and then would be extremely sluggish again. I can't even get his attention anymore unless I am feeding him, which is a very good sign that he is still eating fine. I miss his bubble nests! He sleeps ALL day with random twitches (jumping out of the water). Yesterday I noticed white cottony spots on him :l As you can see I have tried A LOT and I don't know what to do to help my poor betta
I hope I covered everything! He is still on the Polyguard seachem freshwater medication although I am trying to run the filter for a few hours the past few days just because he isn't cured after the treatment.
p.s. I use stress coat by api and bettasafe by tetra when doing water changes. And he sleeps either at the top corner or bottom corner :(