My female betta, She looks like turn red her under gill cover, near chin, and has red tumor.
What size is your tank? 5 gallon
What temperature is your tank? 78F
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? With a female(separated), water glass and some pod
What type of food do you feed your betta fish? Hikari and frozen red worm
How often do you feed your betta fish? Two per day
How often do you perform a water change? Twice per a week
What percentage of the water do you change when you perform a water change? 50%&100%
What type of additives do you add to the water when you perform a water change? I didn't add, because I use wall water
Have you tested your water? If so, what are the following parameters?
Symptoms and Treatment
How has your betta fish's appearance changed? Just turn red ans has a small tumor
How has your betta fish's behavior changed? Not change her behavior. But I moved small hospital tank, about 1 gallon. She often near surface of water or bottom of water. She like swimming a lot.
When did you start noticing the symptoms? 15 days ago
Have you started treating your fish? If so, how? I move hospital tank, and add Nitrofurazolidon. But it's not works. I changed Tetracycline, but empired today
Does your fish have any history of being ill? She has small red patch at her Pectoral Fin last month. I moved hospital tank, and add salt. She recovery a week. That's all
How old is your fish (approximately)? I bought her last October. Maybe 8 month ?
Her under Gill cover is red.
But she eat and poop normally.
I changed water today, and I just add salt now.
What can I do for her ?
Do you know what desease ?
I attach her pic