I have a beautiful beta that I got back in November. The past two weeks he has been completely lifeless, almost comatose. I have thought several times he was dead and I go to scoop him out and then he starts swimming around fast, then goes back to being comatose. He hides in his cave or today he was floating up on the top. He won't eat at all. Water params are fine, nothing has changed. Any idea? I am sure he will die soon, but thought I'd throw it out to see if there is some sort of cure. He is in a 5 gallon, heated, with a 10 gallon filter. Thanks!!