This site has not yet been updated to reflect the changes in Reborn v19.5. It still only reflects the state of the game as of v19.16.

Hydro Pump

Damage class	Special	Type	WATER	Target	Single target
Power	110	Accuracy	80	PP	5
Priority	0	Additional effect chance			0%
Additional effect description		No additional effect.

In-game description

The target is blasted by a huge volume of water launched under great pressure.

Pokémon that learn it

Pokémon	Methods
Squirtle	Level 40
Wartortle	Level 49
Blastoise	Level 60
Blastoise (Mega Form)	Level 60
Psyduck	Level 40
Golduck	Level 46
Poliwag	Level 38
Poliwhirl	Level 48
Tentacool	Level 46
Tentacruel	Level 52
Shellder	Level 61
Cloyster	Level 1
Horsea	Level 52
Seadra	Level 1
Seadra	Level 60
Goldeen	Egg move
Staryu	Level 53
Starmie	Level 1
Gyarados	Level 42
Gyarados (Mega Form)	Level 42
Lapras	Level 47
Vaporeon	Level 45
Omanyte	Level 55
Omastar	Level 1
Omastar	Level 75
Totodile	Level 50 Egg move
Croconaw	Level 60
Feraligatr	Level 76
Chinchou	Level 45
Lanturn	Level 51
Marill	Level 47
Azumarill	Level 55
Qwilfish	Level 1
Qwilfish	Level 57
Remoraid	Level 42
Octillery	Level 52
Mantine	Level 49 Egg move
Kingdra	Level 1
Kingdra	Level 60
Suicune	Level 71
Lugia	Level 37
Mudkip	Level 41
Lombre	Level 44
Pelipper	Level 1
Pelipper	Level 50
Surskit	Egg move
Carvanha	Egg move
Wailmer	Level 49
Wailord	Level 58
Barboach	Egg move
Milotic	Level 44
Castform	Level 35
Castform (Sunny Form)	Level 35
Castform (Rainy Form)	Level 35
Castform (Snowy Form)	Level 35
Huntail	Level 50
Gorebyss	Level 50
Relicanth	Level 46
Luvdisc	Level 46
Bagon	Egg move
Kyogre	Level 75
Kyogre (Primal Form)	Level 75
Piplup	Level 43 Egg move
Prinplup	Level 51
Empoleon	Level 59
Buizel	Level 45
Floatzel	Level 57
Mantyke	Level 49 Egg move
Palkia	Level 50
Oshawott	Level 43
Dewott	Level 53
Samurott	Level 63
Panpour	Egg move
Tympole	Level 42
Palpitoad	Level 47
Seismitoad	Level 53
Tirtouga	Level 50
Carracosta	Level 61
Frillish	Level 49
Jellicent	Level 53
Alomomola	Level 1
Alomomola	Level 65
Keldeo	Level 67
Froakie	Level 48
Frogadier	Level 56
Greninja	Level 68
Skrelp	Level 42
Dragalge	Level 42
Volcanion	Level 50
Popplio	Level 43
Brionne	Level 51
Primarina	Level 55
Wishiwashi (Solo Form)	Level 54
Wishiwashi (School Form)	Level 54
Tapu Fini	Level 58