I got a new fish on Monday and Monday evening he was fine. Tuesday he started clamping his fins and just floating at the surface of the water. He swims around a bit every now and again, but he's not overly active. His fins are a bit ripped up, which is where I'm thinking possible finrot. Earlier today I came home to find him in his hide gasping! He is eating. I'm just really concerned about him!
At the lfs, he was kept in one of those triple betta monstrosities where there's a betta in each tiny wedge. He was in the middle, with a betta on each side. He was flaring lots right before I bought him. Could it be stress? Both from the store and from being moved into a newer/bigger tank?
What size is your tank? 2.5g (supposedly...seems more like a 2g, but it might be the decorations taking up all that space, even though I don't have much in there)
What temperature is your tank? Around 76 degrees F
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, with a pre-set heater
What tank mates does your betta fish live with? None
What type of food do you feed your betta fish? Betta pellets, frozen or freeze dried blood worms once a week
How often do you feed your betta fish? Once a day, 4 pellets.
How often do you perform a water change? Brand new tank...n/a
What percentage of the water do you change when you perform a water change? Did a 50% change yesterday, adding aquarium salt to the water.
What type of additives do you add to the water when you perform a water change? Nutrafin Aqua Plus, Nutrafin Cycle
Have you tested your water? If so, what are the following parameters? Haven't tested...water change yesterday
Symptoms and Treatment
How has your betta fish's appearance changed? Clamped fins, torn fins possibly getting worse (finrot?).
How has your betta fish's behavior changed? Complete listlessness, floating on top of water, occasional energy spurts
When did you start noticing the symptoms? Tuesday
Have you started treating your fish? If so, how? Aquarium salt (1tsp/gallon for 2g tank), Bettafix (1/4 tsp/gallon for 2g tank). I know Bettafix doesn't have great reviews, but it's all I have at the moment. That's why I didn't give a full dose.
Does your fish have any history of being ill? New fish
How old is your fish (approximately)? Not sure, but he's really small