............. Wow. That video... I'm sitting here freaking out because I'm having flashbacks of Penny dragging her mouse into her water bowl a few weeks ago and freaking out that the snake is going to drown...

But yeah, while garter snakes and cottonmouths and snakes like that might eat fish and get by on them pretty well, a BP is meant to eat rodents. They have a great love for hamsters and gerbils, but since those are a touch expensive, mice and rats are fine. And I've honestly never heard of a BP chowing down on a fish. Interesting thought, though.