The hubby and I gave Bahamut a couple days and the orange alert on the little guy is down to yellow. Right now he's eating semi-normally (though likes it as a game with me guiding him with a tooth pick.. Yea, I know) and is now tucking himself under or against his little ornament when not swimming about. He's also finally noticed his neighbor (Bismarck) and the two contest from time to time. Though he flares best for the mirror.
So again, thank you everybody for your well wishes and help with Bahamut's problem. He'll probably be living with epsom salted water for the rest of his life but he's happy, healthier and gaining color and spunk back! ^^