I have a female betta, Karmady. Last Sunday we noticed she wasn't acting like herself and her appetite had subsided. We immediately did a 100% change of her water. Her tank is 2.5 gallons, Fluval Spec with 3-stage filtration (fiter, active carbon, and biomax).
We normally do a 100% water change every 3-4 weeks because we were having problems with algae. Even with using API Algaefix, we were never able to get it 100% under control. Karmady showed signs of swim bladder disorder - she was swimming towards one side, had trouble swimming straight, and one side of her abdomen appeared to be larger than the other. We started to fast her and quite frankly she had no interest in eating. From there, we noticed her eyes started to cloud and bulge slightly. Here's what we did each subsequent day.
noticed loss of appetite, monitored her for any other changes
thoroughly cleaned aquarium, added 1/4 tsp of stress zyme, researched betta diseases; added a heater (weather here was cold, so we wanted to keep her at a consistent 78 - 80)
suspected pop eye and swim bladder disorder, started 1/4 tsp of API Melafix for suspected bacterial infection; begin 7 day treatment
Wed, 1/16: 1/4 tsp of Melafix
Thu, 1/17: 1/4 tsp of Melafix
Fri, 1/18: 1/4 tsp of Melafix
1/4 tsp of Melafix; tried a 30 min salt bath using epson salt and placed her in a hospital tank with a small amount of water (1/2 tbsp of epson salt dissolved in 1 gallon of water; hospital tank was ~2.5 cups of water)
tested old water, no ammonia, nitrates, or nitrites present, slightly elevated pH (between 7-8), we condition the water but have very low chlorine in our tap. did 100% water change, decided her condition wasn't improving and started to notice one gill wasn't closing all the way. Began antibiotic treatment with 1/8 tsp of API T.C. Tetracycline
1/4 tsp of Melafix + 1/8 tsp of tetracycline
I have a video available of her if helpful. Please message me and I'll email it to you. Please note the gill on her right side is not closing all the way, her mouth is constantly opened with labored breathing, and her left gill will occasionally release an air bubble. I'm not sure if any of this is helpful, but wanted to provide all details possible. We've tried introducing food every day since Wednesday, but she has absolutely no interest in food. She only ever ate flakes, despite our attempts to give her frozen blood worms (thawed out), pellets, freeze dried blood worms.
We don't want to see her suffer and are trying to get her better as fast as possible. I've throughly read through your diseases & illnesses page and with her having so many symptoms, I don't know if I'm missing something. Should we be treating for fungal infection instead? What I original thought was swim bladder disorder or constipation has grown into popeye, and now what I think is gill disease.
Any info you can provide will be most appreciated. Thank you for your time!