I feel your pain. I had a fish named Flame and he was my first betta and he passed away in Aug. He made a year. I raised him from a very tiny fish. Was my first betta purchase. I still have the subsequent 4 I got soon thereafter! One of them is also on borrowed time...Rainbow. He's blind but I feed him with tweezers and we have a routine built up. You sound like you did right by Atlas.