Green sunfish are a type of fish.
Like all types of fish, each green sunfish gives one fish fillet when caught.
Catching green sunfish
Green sunfish can be caught with green and gold lures in any fishing spot, but their favorite spot is #3 (the reedy area under the waterfall).
Green sunfish can be caught in large circles and therefore are easier to catch.
See Fishing List for more detailed information.
Green sunfish in the fishing book
The green sunfish is on page 15 of the fishing book:
A hardy fish that can thrive in any conditions. Calls your lake a "luxury spa"!