The flea is a bug that Sandy picks up while visiting Texas and brought to Bikini Bottom. It is known for being able to reproduce in rapid succession, causing an infestation within Sandy's treedome. It appears in the episode "A Flea in Her Dome."


The flea appears to have a large, red body. It has two long legs and four short legs. It's head consists of small yellow eyes, and long antennas.

Role in episode

After Sandy brings it home, the flea causes pain to SpongeBob, Patrick, and Sandy by continuously biting the three. This is a conflict throughout the rest of the episode.

The flea's attacks are eventually countered by Sandy's flea proof collar. However, the collar was destroyed during the multiplication of the fleas.

After the fleas duplicate, Sandy gets an idea to destroy them with water, so she opens the door to her treedome and all of the Bikini Bottomites are sucked into her house.


  • The flea's sound resembles Megaguirus from the Toho film Godzilla vs. Megaguirus.