Hi everybody, I'm hoping one of you will be able to help me. I have a 26 gallon bowfront, heavily planted, with 8 female bettas. I've recently been having a problem with 4 different fish, and no one can seem to figure out what it is. It starts outs looking like just a pale spot, usually just on the body. Then some of the scales fall off. The area will become raised, and it looks almost, chewed, I guess? After that, a compact bunch of thin, white hairs grows out of it. If the hairs are pulled off or fall off, it leaves a deep sore. I have 2 fish that are having this problem now, and it's just at the raised stage now, and the other 2 that had it have died. About my tank, it's been set up for a little over a year, ammonia and nitrite both 0 and nitrate between 20 and 30. The PH is 7.5, and the temp stays about 76. I've been told it's a true fungus, columnaris, and parasites, and I've treated for all of these, and nothing has helped. I really hope someone here can! Thank you!
What size is your tank?26 gallons
What temperature is your tank? 76
Does your tank have a filter?yes
Does your tank have an air stone or other type of aeration? yes
Is your tank heated? yes
What tank mates does your betta fish live with? 7 other female bettas
What type of food do you feed your betta fish? Hakiri betta bio gold pellets
How often do you feed your betta fish? once a day
How often do you perform a water change? once a week
What percentage of the water do you change when you perform a water change?30%
What type of additives do you add to the water when you perform a water change?fertilizers for the plants, water conditioner
Have you tested your water? If so, what are the following parameters?
Symptoms and Treatment
How has your betta fish's appearance changed? raised chewed looking spot
How has your betta fish's behavior changed? it hasn't yet
When did you start noticing the symptoms? on these 2 fish, about a week ago
Have you started treating your fish? If so, how?
Does your fish have any history of being ill? no
How old is your fish (approximately)? I've had them for about 6-7 months