Our male beta Johnny has a growth of some sort behind his eye. I really don't feel like its pop eye because the eye itself is not swollen. Its like its behind the eye mainly in front of but also involving the gills I think. Here are the best photos I could get. The photos show like some skin rot to possible, but that is hard to see with the naked eye. I am not sure how to treat this. Its been this way for a little while but I was afraid to treat him with the wrong medication or something, then I found this forum and figured I would try here. I am pretty good at keeping up on water changes and he is fed well but not too much, he has done amazing the 3 years we have had him until now. His behavior has not changed though. I am a long time owner of bettas, and currently own him and another male (seperate tanks) and have never had a sick fish so I am a loss on what to do.
What size is your tank?
1 and half gallon
What temperature is your tank?
Room Temperature or a bit warmer
Does your tank have a filter?
Does your tank have an air stone or other type of aeration?
Is your tank heated?
What tank mates does your betta fish live with?
He lives alone
What type of food do you feed your betta fish?
Wardley Betta Food Pellets and Blood worms
How often do you feed your betta fish?
Pellets Daily and blood worms 2 times a week
How often do you perform a water change?
50% every other day and fulll once a week
What percentage of the water do you change when you perform a water change?
50% and then one full change a week as well
What type of additives do you add to the water when you perform a water change?
Aqua safe water treatment and conditioner
Have you tested your water? If so, what are the following parameters?
No, I have never tested it but I could if I needed to.
Symptoms and Treatment
How has your betta fish's appearance changed?
He has a large lump behind his eye but in front of gills. Eye is of normal size and does not stick out at all.
How has your betta fish's behavior changed?
When did you start noticing the symptoms?
A few weeks ago (had no idea what to do!)
Have you started treating your fish? If so, how?
Does your fish have any history of being ill?
How old is your fish (approximately)?
We have owned him for 3 years.