My betta has been acting sick, and I think it's getting worse, but I'm having a hell of a time figuring out what's wrong with him.
Any thoughts and advice are welcomed, I'm afraid he's got some kind of disease and I don't know how to treat him.
What size is your tank? 1 gallon
What temperature is your tank? 76-78 degrees
Does your tank have a filter? yes, but I removed it when this started, about a week ago.
Does your tank have an air stone or other type of aeration? no
Is your tank heated? yes, as of Monday
What tank mates does your betta fish live with? none
What type of food do you feed your betta fish? Hikari Betta Bio Gold
How often do you feed your betta fish? Every day except Sat and Sunday (He lives at work)
How often do you perform a water change? Once a week (I am increasing this to 2 times a week, based on advice from this forum)
What percentage of the water do you change when you perform a water change? 25-50%
What type of additives do you add to the water when you perform a water change? Water conditioner
Have you tested your water? If so, what are the following parameters? Don't have a test kit.
Symptoms and Treatment
How has your betta fish's appearance changed? Here's the problem. He's a black betta, so it's really hard to tell how, if at all his appearance has changed. When I shine a light on him he's always had a green and reddish tint to his scales.
I'm not positive if he's gotten more red when I shine a flashlight on him. At first I thought he might have velvet, but I honestly can't tell. There's a chance his stomach is bloated, but again, it's so difficult to see.
How has your betta fish's behavior changed? He's always been a pretty lethargic fish, but I think that was due to his water being a bit cold. (I got the heater Monday.) He used to eat three pellets a day, in the morning. He suddenly stopped eating last week, but when I put in the heater, he did eat three pellets. Yesterday he only ate one, and today he may have eaten one, but I'm not entirely sure, because I didn't see him do it.
The biggest behavior change besides the eating is that I haven't seen him move from the top corner of his tank (right by the heater) in about two days. His little fins go, but that's about the extent of his movement. When I tried to get a better look at him with a flashlight, it seemed to really stress him out, he swam all over the tank like a maniac, but he ended up right back in that spot.
When did you start noticing the symptoms? Last week. He was floating near the top of the tank and stopped eating.
Have you started treating your fish? If so, how? The changes I've made were to add a heater, since it was suggested this might be because he was cold. He's had warm water for 3 days now. Maybe I'm being impatient, and if that's the case, I'll be glad. I'm just worried that this might be something that needs to be treated. I also have been keeping the tank light off, as I was worried that might be stressing him out.
Does your fish have any history of being ill? None that I'm aware of
How old is your fish (approximately)? I bought him 6 months ago