It is unfortunate, but Chai passed away last night, likely from underlying infection. He had built a bubble nest, and had quite the appetite, so I was quite durprised to find him floating dead in his tank only 3 hours past feeding time. Poor dear.
I'm going back to the pet store tomorrow, after I'm done soaking Chai's tank and ornaments. There was an orange double veil who seemed full of energy, but had some really intimidating fin rot. He may do better, as Chai wasn't too well or energetic when I first got him.