So I got Colonel Mustard Friday and he was darting around at first and later he was very lethargic. I didn't know if he would make it through the night, but the next day he was doing great. This will explain a lot:
I hope he doesn't have internal parasites.
What size is your tank? 1 gallon.
What temperature is your tank? 78F
Does your tank have a filter? No.
Does your tank have an air stone or other type of aeration? No.
Is your tank heated? Yes.
What tank mates does your betta fish live with? None.
What type of food do you feed your betta fish? NLS, I haven't fed him any frozen bloodworms but I am going to tonight.
How often do you feed your betta fish? 2 pellets, once a day, skip one day of the week.
How often do you perform a water change? Every few days.
What percentage of the water do you change when you perform a water change? 50% using gravel vacuum.
What type of additives do you add to the water when you perform a water change? Tetra SafeStart water conditioner.
Have you tested your water? If so, what are the following parameters?
I Don't have a test kit.
Symptoms and Treatment
How has your betta fish's appearance changed? Some ripped and tattered fins. (See picture)
How has your betta fish's behavior changed? He lounges on the thermometer all day, and when I turn on the light he darts everywhere.
When did you start noticing the symptoms? Monday.
Have you started treating your fish? If so, how? Not yet.
Does your fish have any history of being ill? No.
How old is your fish (approximately)?
I have no idea.
This picture shows the rip in his fins that worry me. It is hard to get a picture because he darts around to much.