What happen to Fluffy Puffy after the SpongeBob episode Pal for

In the episode's conclusion, it is shown that Fluffy Puffy was still alive and well. He had fallen asleep in the pet hospital, and after SpongeBob and his friends left, he decided to go back to Plankton's Chum Bucket. It is unclear what happened to him after that, but he is likely still alive and living at the Chum Bucket.