Hello, thanks 4 any help here. What happens is I got a rare fish at Wal-Mart but he likes to kill. He would probably kill fishes even bigger than him. I didn't want to flush him so I put him in a small fish bowl. Now he looks like he's dying inside the fish bowl. The interesting part is that he revives or gets active when I put him back in the bigger tank with the other fishes. I need some help identifying this fish, I have no idea what it is and what to do with him.

