Chum Bucket

The Chum Bucket is an unsuccessful fast food restaurant that was located right across the street from the Krusty Krab. It is owned by Sheldon Plankton and Karen Plankton, where they both reside. It first appears in the episode "Plankton!"

The Chum Bucket is normally unable to compete with the Krusty Krab because it mostly serves foul-tasting foods made from chum. It rarely gets any customers. A running gag throughout the series is about Plankton's numerous attempts to steal the Krabby Patty secret formula to attract customers to his restaurant, all of which have failed, except in The SpongeBob SquarePants Movie.

Although both Plankton and Karen operate the restaurant, episodes such as "Krabby Road" and "Plankton Gets the Boot" show that Karen is the one in charge of the building. She has used her authority to kick Plankton out of the Chum Bucket on several occasions.