I've adopted a new betta since the death of my last one, but discovered he had jumped out of his tank. I assumed he had died for he was unresponsive and dry. But to my shock and delight/horror he flopped when he got wet. He is now back in his tank. Battered but alive. What should I do? Will he recover? He is breathing heavily but not swimming much at all. He only moves when the Corys bump into him.