"Well, fish we can always guarantee, one way or the other." It's water. Where there's water, there's fish. It's a basic fact of reality, as far as Joker is concerned. Sometimes they might not be the biggest fish, or the best, but they're edible.

....Usually. But he knows which ones to not trade off.

Moving on. "Fruit and land animals would be for the best, I'm thinkin'," he muses aloud, starting to idly swim in circles. He might not be a shark, but staying still for so long doesn't suit him either way. "But I'm always willin' ta try somethin' new, especially some of the things ya mentioned that we're not familiar with, down here." Like honey, or what kind of cooked foods can be found on land.

Why not be a little adventurous, after all?