I’ve had my Betta for a little over a year now. He lives by himself in a filtered and heated 10 gallon aquarium. I have tested ammonia consistently at 0. For the longest time I thought Bettas were supposed to struggle to swim to deeper water (stupid I know. This is my first fish), but resently I found out about SBD. I fasted his for 3 days and his condition didn’t change. Instead of putting him back to regular meals I have been giving only about one-two Betta pellets a day for about the past week. He hasn’t gotten any better I don’t remember him always struggling this badly, is there anything else I can do? Thanks.