H2O: Just Add Water poster
Where to stream

H2O: Just Add Water

7.820063 seasonsTV-PGTV SeriesDramaFamilySci-Fi & Fantasy

H2O: Just Add Water revolves around three teenage girls facing everyday teen problems with an added twist: they cope with the burden of growing a giant fin and transforming into mermaids whenever they come in contact with water.

ProducerJonathan M. Shiff

Where to watch

NetflixNetflixAmazon Prime VideoAmazon Prime VideoNetflix Standard with AdsNetflix Standard with AdsAmazon Prime Video with AdsAmazon Prime Video with AdsDove Amazon ChannelDove Amazon ChannelHooplaHooplaThe Roku ChannelThe Roku ChannelFandango at Home FreeFandango at Home FreePluto TVPluto TVTubi TVTubi TV
Availability shown for United States · rights vary by country

Seasons & Episodes

E1
The Awakening
Oct 26, 2009 5.8
E2
Jungle Hunt
Oct 27, 2009 6.0
E3
Keep Your Enemies Close
Oct 28, 2009 6.0
E4
Valentines Day
Oct 29, 2009 6.0
E5
Big Ideas
Oct 30, 2009 6.0
E6
Secrets & Lies
Nov 2, 2009 6.0
E7
Happy Families
Nov 3, 2009 6.0
E8
Kidnapped
Nov 4, 2009 6.0
E9
The Sorcerer's Apprentice
Nov 5, 2009 6.7
E10
Revealed
Nov 6, 2009 6.0
E11
Just A Girl At Heart
Jan 18, 2010 6.0
E12
Crime & Punishment
Jan 19, 2010 6.0
E13
To Have & To Hold Back
Jan 21, 2010 6.0
E14
Mermaid Magic
Feb 22, 2010 6.0
E15
Power Play
Feb 23, 2010 6.0
E16
The Dark Side
Feb 24, 2010 6.0
E17
A Magnetic Attraction
Feb 25, 2010 6.0
E18
Into The Light
Apr 12, 2010 6.0
E19
Breakaway
Apr 13, 2010 6.0
E20
Queen For A Day
Apr 13, 2010 6.0
E21
The Jewel Thief
Apr 14, 2010 6.0
E22
Mako Masters
Apr 14, 2010 6.0
E23
Beach Party
Apr 15, 2010 6.0
E24
Too Close For Comfort
Apr 15, 2010 6.0
E25
A Date With Destiny
Apr 16, 2010 6.0
E26
Graduation
Apr 16, 2010 6.0

Cast

PTPhoebe Tonkin
Phoebe Tonkin
Cleo Sertori
CHCariba Heine
Cariba Heine
Rikki Chadwick
IEIndiana Evans
Indiana Evans
Isabel "Bella" Hartley
LMLuke Mitchell
Luke Mitchell
Will Benjamin
BABurgess Abernethy
Burgess Abernethy
Zane Bennett

More from Phoebe Tonkin · Lead actress

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Home and Away
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2022 · 7.3
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2014 · 6.7
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2011 · 7.3
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2023 · 6.0
See all fromPhoebe Tonkin

More from Cariba Heine · Co-star actress

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1988 · 6.4
Designated Survivor
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2016 · 7.2
The Pacific
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2010 · 7.8
Mako: Island of Secrets
Mako: Island of Secrets
2013 · 7.6
Blue Water High
Blue Water High
2005 · 7.2
Bait
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2012 · 5.6
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2010 · 7.4
Wellmania
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2023 · 6.4
Everyone Is Doing Great
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2021 · 5.7
The Secrets She Keeps
The Secrets She Keeps
2020 · 5.4
See all fromCariba Heine

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H2O: Just Add Water — streaming FAQ

Which OTT platform streams H2O: Just Add Water?

H2O: Just Add Water is streaming on Netflix, Amazon Prime Video and Netflix Standard in United States, and available to rent or buy on Amazon Video and Apple TV Store.

Is H2O: Just Add Water on Netflix?

Yes — H2O: Just Add Water is available on Netflix in United States as of October 2026.

Is H2O: Just Add Water on Amazon Prime Video?

Yes — H2O: Just Add Water is included with an Amazon Prime Video subscription in United States as of October 2026.

Where can I watch H2O: Just Add Water for free?

H2O: Just Add Water is available to stream free (with ads) on Hoopla and The Roku Channel in United States.

How many seasons are in H2O: Just Add Water?

H2O: Just Add Water has 3 seasons in total (78 episodes). The series concluded in 2010.

Are all episodes of H2O: Just Add Water out yet?

Yes — all 78 episodes across 3 seasons of H2O: Just Add Water are out and available to stream.

Is there a Season 4 of H2O: Just Add Water?

No — H2O: Just Add Water ended after 3 seasons, so there is no Season 4.