Monty Burns wrote in message . ..
Enter the stereotypical question : I want a big fish for a big pond,
that will eat small mammal carcasses / meat scraps / other fish.
(I've searched via Google, but can't find the answer)

Flathead catfish. Might not be legal in WA, though.

Ask around about the largest breed of catfish in your area, might be
one I'm not remembering.