Our Betta fish,Nick, was doing great in his 6.5 gallon tank with filter and heater. We got him in April and he grew his fins in the next 2 months, so isn’t very old. He was happy, active, and blowing bubble nests every week. Weekly water and vacuum changes of about 25%. High quality food, including frozen blood worms or brine shrimp 1x per week. About 2 months ago I noticed a random snail in the aquarium. I let it be and the two lived peacefully for a couple of weeks. Then one morning the snail was floating at the top of the water. I thought it was dead but placed it in a bowl with water just in case. It lived and I purchased a one gallon tank for it. After this incident our Betta’s behavior changed. He started laying on his side or hanging out at the top of the tank. I also began to notice more and more tiny snails in the tank! He got to have trouble staying level, and floats up or down, has a slight bend in his back, and a little bloated at the bottom. I’m pretty sure it’s swim bladder from gorging on snails. I dosed him with kanaplex, fasted him 2 days, fed him green peas. He seemed to be getting better. Now he has been backsliding. The tank was overrun with these snails, so I purchased a new tank, and a quarantine tank and moved him out of that aquarium 2 days ago to the QT. I’ve got the new tank (6.5 gallons, filter, heater, live plants) cycling now. I fasted him for 1+ days and fed him a pea. Gave him only 2 pellets today. I’ve seen fish poop which is positive. Been changing out the water about 25% 2x per day in QT tank. I don’t know if he’s going to make it. The water in the QT tank is off, but I worry he’s not strong enough yet to be put back into the 6.5 gallon tank, and it’s only been cycling for 2 days. Any advice is appreciated. Thank you!! Here Nick is below in QT next to new tank that is cycling.