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S1E6: The Mysterious Seaweed
H2O: Mermaid Adventures
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H2O: Mermaid Adventures S1E6: The Mysterious Seaweed

  • Aired: 2015-05-22
  • Runtime: 25 minutes
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Overview

An aggressive blue seaweed attacks Emma, reversing her mermaid powers and forcing her friends to come to the rescue.

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