My beautiful betta fish has been bloated the past few weeks and I don't know what to do for him!
I've had him for 2 years, he had been previously living in a 1-gallon tank and been happily active and grown rather large over the years. Recently, I noticed his belly was very swollen a couple weeks ago. He also appears heavy and finds it more difficult than normal to swim to the top of the water. If he isn't actively and vigorously swimming around, the moment he stops or slows his pace he'll begin to fall to the bottom of the tank like a rock. Other than that, he appears normal. His colors are vibrant, he breathes normally, his scales look fine (they aren't raised and there are no sores) and his fins haven't changed.
I cut back on his food intake but he was still bloated. Fearing something might be horribly wrong with him, I put him in a smaller tank about half the size so I could keep a better watch on him. I began to put more variety in his diet and introduced freeze-dried brine shrimp (he was previously fed off of pellets mostly but he'd also been fed blood worms in the past). I continued to cut back his food intake and feed him very minimally everyday, but after over a week of that he's still as bloated and heavily sinking to the bottom as ever. What could be wrong with him?
EDIT: Here's a picture of him hanging out by his rock:
I've had him for 2 years, he had been previously living in a 1-gallon tank and been happily active and grown rather large over the years. Recently, I noticed his belly was very swollen a couple weeks ago. He also appears heavy and finds it more difficult than normal to swim to the top of the water. If he isn't actively and vigorously swimming around, the moment he stops or slows his pace he'll begin to fall to the bottom of the tank like a rock. Other than that, he appears normal. His colors are vibrant, he breathes normally, his scales look fine (they aren't raised and there are no sores) and his fins haven't changed.
I cut back on his food intake but he was still bloated. Fearing something might be horribly wrong with him, I put him in a smaller tank about half the size so I could keep a better watch on him. I began to put more variety in his diet and introduced freeze-dried brine shrimp (he was previously fed off of pellets mostly but he'd also been fed blood worms in the past). I continued to cut back his food intake and feed him very minimally everyday, but after over a week of that he's still as bloated and heavily sinking to the bottom as ever. What could be wrong with him?
EDIT: Here's a picture of him hanging out by his rock: