My CT betta last night was acting strange. His head is black but turned a strong pale brown color (it didn't look like velvet). He was acting really lethargic (every movement was in slo-mo) He would drift around slowly and bump into the things head on. His stomach looked a little big but not overly feed. I've been feeding him dry pellets mostly and some flakes occasionally. I added some Betta Revive and he was back to normal by the morning. Any ideas what it was? I feed him some cucumber around noon which he ate, but he wouldn't eat a second piece.
