The power to breathe in both water and air. Sub-power of Aquatic Adaptation.

Also Called

  • Amphibian Effect
  • Underwater Breathing/Respiration
  • Water-Breathing


The user can breathe in both water and air and are capable of staying underwater as long as they like and reemerge ready to breathe oxygen again.



  • May have complications when transitioning from water to air.
  • Chemicals/pollutants in water may damage lungs.
  • May have a limited amount of time they can respire air or water.

Known Users



  • Ripjaws (Ben 10)
  • Kevin 11 (Ben 10)
  • Ditto (Ben 10)
  • Big Chill (Ben 10: Alien Force)
  • Ultimate Big Chill (Ben 10: Alien Force)
  • Water Hazard (Ben 10: Alien Force)
  • Aerophibians (Ben 10 Series)
    • Jetray
  • Amperis (Ben 10 Series)
    • AmpFibian
  • Walkatrout (Ben 10: Omniverse)
  • Overflow (Ben 10 Reboot)
  • Sirens (My Little Pony Series)
  • Cpt. Cutler (Scooby Doo)
  • Mermaid Man & Barnacle Boy (Spongebob Squarepants)
  • Nya (Lego Ninjago: Masters of Spinjitzu)
  • Sideshow Bob (The Simpsons)
  • The Winx (Winx Club); via Harmonix and Sirenix
    • Bloom
    • Flora
    • Stella
    • Aisha
    • Musa
    • Tecna
    • Daphne
  • The Trix (Winx Club); via Dark Sirenix
    • Icy
    • Darcy
    • Stormy
  • Roy (Winx Club); via Trident Aura
  • Genie (Disney's Aladdin)
  • Jafar (Disney's Aladdin)
  • Merpeople (Disney's The Little Mermaid); via King Triton's trident and Ursula's magic
    • Ariel
    • King Triton
    • Melody; via Ursula's magic
    • Ursula
  • Nessies (Happy Ness: The Secret of the Loch)
  • Fish mane (Mane-online)
  • Serge (Generator Rex)
  • Merliah Summers (Barbie in a Mermaid Tale)
  • Sea monsters (Sofia the First)
  • Stretch Monster (Stretch Armstrong and the Flex Fighters)
  • Sirena Ong (The Venture Bros.)
  • Xever Montes (Teenage Mutant Ninja Turtles TV series); via water-breathing rig and mechanical legs
  • Syren (Miraculous Ladybug)
  • Ladybug and Cat Noir (Miraculous Ladybug); via Aqua Form
  • Mira (The Hollow)
  • Lopaka (Flipper and Lopaka)
  • Various sirenas (Elena of Avalor)
    • Princess Marisa
    • Prince Marzel


  • Pyunma/Cyborg 008 (Cyborg 009)
  • Joe Shimamura/Cyborg 009 (Cyborg 009)

Video Games

  • Blue Pikmin (Pikmin)
  • Mermaids (The Sims 3: Island Paradise)
  • Many Water-type Pokémon (Pokémon)

Live Television


  • Percy Jackson (Camp Half-Blood series)

Known Objects

  • Underwater Materia (Final Fantasy VII)
  • Underwater Breathing Rune (The Dark Artifices)
  • Gillyweed (Harry Potter)
  • Air Necklaces (Sonic the Hedgehog)
  • Gills of Hamachi (Xiaolin Showdown)
  • Air Charm (Archie's Sonic the Hedgehog)
  • Poseidon's trident (God of War series)
  • Magical Seaweed (Barbie: Fairytopia)
  • Rebreather (Fallout: New Vegas)
  • Mind Control Device (Inside)
  • Water Breathing Potions (Minecraft)
  • Starfire Sapphire Gem (Tenko and the Guardians of the Magic)
  • Pearl of Transformation (My Little Pony: Friendship is Magic)
  • Neutronic Air Gum (The Adventures of Jimmy Neutron: Boy Genius)
  • King Triton's trident (Disney's The Little Mermaid)
  • Ursula's magic (Disney's The Little Mermaid)