So I wrote about a month ago explaining how my fish, Wartooth, had a white spot on his head:
Here I am again, with the same issue. Same spot, same location. He doesn't act sick, but he has that spot. I've taken a better photo and I don't even know what to call it. He doesn't appear sick at all. He acts normal.
What size is your tank? 10 gallon. Holding ~9 gallons.
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? 2 other male bettas.
What type of food do you feed your betta fish? Pellets. Frozen dried bloodworms once per week.
How often do you feed your betta fish? Twice per day. Two pellets each.
How often do you perform a water change? 25% every 1 week. 100% every 3.5-4 weeks (when needed.) Vacuum? Once a week (makes up for the 25% water change).
What percentage of the water do you change when you perform a water change? 25% weekly.
What type of additives do you add to the water when you perform a water change? Conditioner. Tiny amounts of salt. ~4 grains each section.
Have you tested your water? If so, what are the following parameters? No.
Symptoms and Treatment
How has your betta fish's appearance changed? White spot. Continuous. Never goes away, if it does, it comes back within days.
How has your betta fish's behavior changed? None.
When did you start noticing the symptoms? ~month-2 months ago.
Have you started treating your fish? If so, how? Currently seeking that help. Tried salt treatments, elevated temperature of ~80.
Does your fish have any history of being ill? Yes. He was a Walmart fish and stayed sick and naturally has a low immune system. Other fish are not sick and are not showing spot(s) (or have never).
How old is your fish (approximately)? ~7-8 months old.