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The olive fish is a character who appears in the episodes "Pickles" and "Fools in April."


He is olive green with white eyes and black pupils, and dark olive green lips.


In "Pickles," the olive fish makes a cameo in the crowd at the Krusty Krab.

In "Fools in April," when SpongeBob leaves the Krusty Krab crying due to the rude prank Squidward pulled, other customers, including the olive fish, look at Squidward in disgust and leave the Krusty Krab.