We have a male betta approx six months very happy and lively in a 1 gallon tank, no filter or heater - we just changed to 2 gallon tank 2 days ago
A week ago he started looking listless, increasingly just napping through his days and nights, lost all interest in food and unresponsive, at this point I'm amazed he's still alive.
What temperature is your tank? unknown, but has been constant since we got him
Does your tank have an air stone or other type of aeration? No
Is your tank heated? No
What tank mates does your betta fish live with? none
What type of food do you feed your betta fish? New Life Spectrum betta formula
How often do you feed your betta fish? was feeding 2-3 tiny pellets every evening, but currently doesn't eat
How often do you perform a water change? Once a week
What percentage of the water do you change when you perform a water change? All of it
What type of additives do you add to the water when you perform a water change? API tap water conditioner x5 drops per gallon
Have you tested your water? No
How has your betta fish's appearance changed?
Seems to have lost a lot of his usual reddish-purple color, and instead of the nice big fluffy fins they all look bunched up and scrawny
How has your betta fish's behavior changed? When did you start noticing the symptoms?
About a week ago he became listless, laying on his side against a rock, seemed to be sleeping a lot, but could rouse him, now less so. He hardly responds now.
He stopped eating about the same time, and now I try to tempt him with food when I see him come up to the surface, which is infrequent but more in the past two days; he ignores food altogether. He used to come to the glass and get very excited at feeding times, then attack the food with verve.
Not the same fish we've enjoyed for the past six months
Have you started treating your fish? No, except for going from 1 gallon to 2 gallon tank
Does your fish have any history of being ill? Not while we've had him
How old is your fish (approximately)? Unknown, we've had him six months and he's same size as when we got him