Rhubarb the Hermit Crab
Rhubarb the Hermit Crab
Rhubarb the Hermit Crab

Unlocked After:

After you completed Tank 3-5




Snaps his claws at most fish to keep them off the bottom of the tank

Based on:

Hermit Crab


Bottom of the tank


3 X 15000 coins

Rhubarb is a hermit crab with pink legs and claws, a conch shell splattered with white and peach, and is shown to have yellow eyes. He is unlocked after completing Tank 3-5.


Rhubarb is known to many as the worst pet ever. The reason behind this is his not so helpful function, which is keeping your fish off the bottom of the tank. Still, this can help. If the fish aren't near the bottom of the tank, the money they drop won't disappear as fast.


Rhubarb has often been accused of being the "worst pet ever". Rhubarb doesn't really care what his detractors think, though. He's not aiming to be a crowd pleaser. He's not trying to prove anything to anyone. He just wishes those darn fish would stay off the ground!


  • He is named after rhubarb, a plant with long red and green stems cooked and used in most pies and desserts.
  • He is not recommended for Tank 3, due to the Guppycruncher's diet of Guppies. Fish being snapped back to the top of the tank would make it difficult for Guppycrunchers to eat.
  • If Wadsworth is on the bottom of the tank, Rhubarb will snap the Guppies and Breeders out of his mouth temporarily.
  • If used in Virtual Tank with fast non-ground fish and he sends one back to the surface, the fish may appear outside of the tank for a very short time.
  • The rest of his body is never seen.
  • According to the game he is the worst pet ever.
  • In the Korean version of Insaniquarium, he is told to the police for being terrible.


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