Hey everyone, hate to join and beg for help right away, but my betta, named Alfa, is a bit ill. Alfa had a few illnesses about 6 months before now, but seemed to mostly recover (his eye that was infected became less clear, but other than that, was normal.
2 weeks ago, I noticed his heater had stopped working, and his temp had dropped to about 70 F. During this time he developed a sore on his forehead, and on his right cheek some white patches. They seemed minor and I did not want to resort to medicine, so I bought him a new heater, and his temp has been steady in the 76-80 F range for the last 10 days. Since then, while the sore on his forehead has healed completely and his white patches have disappeared, he has not moved more than necessary, lays on the bottom of his tank, and he has not wanted to eat any pellets (maybe 1 per day, when he goes up for air and happens to see it) or blood worms, and will eat the live Daphnia I feed him only if they happen to swim past his field of view when he's lying the tank bottom. Finally, his belly seems bigger than usual, on his underside just behind his gills, which tapers off rather steeply.
I assume his immune system was weakened by the colder than normal water, and some old illnesses might have resurfaced. His energy does not seem to have come back, and it's very difficult to get him to eat now. What do I do?
Please find the questionnaire and image link below.
What size is your tank? 5 gal
What temperature is your tank? 76-80
Does your tank have a filter? Yes, one running 24/7, and one a few days at a time with a UV filter.
Does your tank have an air stone or other type of aeration? Nothing separate, but it's pretty well aerated.
Is your tank heated? Has a submersible heater
What tank mates does your betta fish live with? Just water wisteria plants.
What type of food do you feed your betta fish? Betta pellets, 4-5 in the morning, freeze dried blood worms, live Daphnia that I culture
How often do you feed your betta fish? Twice a day
How often do you perform a water change? Weekly 25%, monthly 95+%
What percentage of the water do you change when you perform a water change? See above
What type of additives do you add to the water when you perform a water change? Nutrafin cycle, Nutrafin water condition, 1 tbsp aquarium salt
Have you tested your water? If so, what are the following parameters?
Ammonia: 0 ppm
Nitrite: 0 ppm
Nitrate: 0 ppm
Symptoms and Treatment
How has your betta fish's appearance changed? He always was fat, but seems to be a bit bloated on his underbelly just behind his gills.
How has your betta fish's behavior changed? Does not flare, unresponsive to me when I chat with him, only moves to swim to top of tank and gulp air, no longer eats pellets or blood worms, and only eats Daphnia when they happen to swim in front of him while he's laying on the rocks. He will chase them to some small degree.
When did you start noticing the symptoms? 2 weeks ago
Have you started treating your fish? If so, how? No
Does your fish have any history of being ill? 6 months ago, had an external fungus infection (feathery sore on scales), treated with antifungal, got better. 2 weeks later had a bacterial infection (slight popeye), treated with Tetracycline, mostly normal.
How old is your fish (approximately)? 1.5 year