My male has never really had any problems, but this morning when I went to turn on his lights I spotted him in the back of his tank doing something weird. He was swimming in place, vertically though, with his face touching the surface. He wouldn't touch his food, which is very uncharacteristic of him. I scooped him out and put him in a cup, and he stopped moving altogether save for breathing.
What size is your tank? 15gal
What temperature is your tank? 80 degrees F
Does your tank have a filter? Two sponge filters
Does your tank have an air stone or other type of aeration?
Is your tank heated? Yes
What tank mates does your betta fish live with? Neon tetras, corydoras, an ivory snail
What type of food do you feed your betta fish? HBH Betta Bites
How often do you feed your betta fish? Twice a day, two pellets each time
How often do you perform a water change? Just did one on Sunday since we moved them to a new house
What percentage of the water do you change when you perform a water change? 10-25%
What type of additives do you add to the water when you perform a water change? API StressCoat
Have you tested your water? Haven't yet, no
If so, what are the following parameters?
Symptoms and Treatment
How has your betta fish's appearance changed? He seems a little flaky (like a snake shedding) around his face, otherwise he looks normal
How has your betta fish's behavior changed? He's been swimming oddly by staying vertical with his face close to the surface. He refused his food.
When did you start noticing the symptoms? This morning, maybe 15 minutes ago
Have you started treating your fish? If so, how? No
Does your fish have any history of being ill? No, he's been in perfect health since I got him in January
How old is your fish (approximately)? He was just about full-grown in January when I got him. I'm not sure.