Housing
What size is your tank? 1 to 2 gallon
What temperature is your tank? 75 degrees
Does your tank have a filter? Yes
Does your tank have an air stone or other type of aeration? N/A
Is your tank heated? Yes
What tank mates does your betta fish live with? He lives with another betta, but there's a water net separating them.
Food
What type of food do you feed your betta fish? Freeze dried blood worms and BettaMin
How often do you feed your betta fish? Once a day.
Maintenance
How often do you perform a water change? Before the filter, once every week. Now, probably every month, due to the filter.
What percentage of the water do you change when you perform a water change? 25%
What type of additives do you add to the water when you perform a water change? Water Conditioner
Water Parameters:
Have you tested your water? If so, what are the following parameters?
Ammonia: Not sure
Nitrite: 0
Nitrate: 0
pH: 8.0
Hardness: 25 (mg/l)
Alkalinity: 180 (mg/l)
Symptoms and Treatment
How has your betta fish's appearance changed? His crowntailed fins seem shorter
How has your betta fish's behavior changed? He swims normally, but sometimes he just lies on the bottom of his tank and doesn't really move unless I put my hand to the tank or feed him.
When did you start noticing the symptoms? A month or 2 ago.
Have you started treating your fish? If so, how? I gave him a Fungus Guard Tablet yesterday, but I don't think it did anything.
Does your fish have any history of being ill? Not until this.
How old is your fish (approximately)? I've had him almost a year.