I lost my cellophane male VT betta last night to reasons unknown. He hadn't been happy since my major tank upheavel started and he got religated to a little 1.5gal hex, but just in the past week or so I noticed he was becoming more and more lethargic and unwilling to eat. His former tankmate, Edward, is still as healthy as can be. Goodbye, Carlisle, you will definitely be missed.