My betta fish elie has been acting weird for a couple of weeks now. He just sits at the top of the tank not moving around very much and holding his fins quite close to himself. I thought it was because of a small tank so I got him a new one I think it’s 1.5 gallons with a filter system and a heater in the new tank I also put a little bit of aquarium salt in the tank to relieve him from stress but he’s still acting weird. I really love my little fish and I dong want him to suffer if anyone has advice it would be greatly appreciated