You will need to teach Buizel Aqua Jet at level 24, then evolve it into a Floatzel at level 26.
If you have a Floatzel, teach it 2 of the Five: Ice Fang Water Gun Swift Brine Aqua Jet The best move I would say: Surf and Waterfall
Buizel learns Aqua Jet at level 21.
Oshawott learns Aqua Jet at level 29.
This is only possible in Pokémon HeartGold, Pokémon SoulSilver, Pokémon Black, Pokémon White, Pokémon Black 2 and Pokémon White 2 however Feraligatr is not capable of not naturally learning Aqua Jet via level-up or a Move Tutor, instead it has to learn it via Breeding due to Aqua Jet being an Egg Move. In order to accompish this, you will need a female Totodile, Croconaw or Feraligatr with either a male Empoleon, Floatzel, Azumarill, Dewgong or Kabutops that knows Aqua Jet and then once you place the 2 of them into the Daycare, after some time the Daycare Man will give you a Totodile Egg and it will hatch into a Totodile that knows Aqua Jet.
sorry but it cant learn aqua jet w/o cheating, but if you make an egg and hatch a piplup it might have aqua ring but it only heals you it doesn't do any damage
level 21....
Floatzel cannot learn Hydro Pump.
Floatzel does not learn ice punch. Floatzel does not learn any ice type attacks naturally and must learn ice type moves via TM.
No, Floatzel does not, and cannot learn Hydro Pump without the use of hacking.
In Pokémon Diamond, Crasher Wake's Gyarados knows Brine, Bite, Dragon Rage and Swagger, his Quagsire knows Slam, Mud Bomb, Tail Whip, Mud Sport and his Floatzel knows Brine, Pursuit, Swift and Ice Fang.In Pokémon Platinum, his Gyarados will know Bite, Twister, Waterfall and Brine, his Quagsire knows Rock Tomb, Yawn, Water Pulse and Mud Shot and his Floatzel will know Brine, Ice Fang, Aqua Jet and Crunch. As part of his Battleground rematch he will have Sharpedo, Gyarados, Ludicolo, Quagsire and Floatzel. His Sharpedo will know Aqua Jet, Slash, Endure and Night Slash, his Quagsire will know Surf, Stone Edge, Earthquake and Yawn, his Floatzel will know Brine, Ice Fang, Aqua Jet and Crunch, his Gyarados will know Avalanche, Giga Impact, Aqua Tail and Bite and his Ludicolo will know Ice Beam, Surf, Focus Blast and Energy Ball.
Floatzel cannot learn Hydro Pump without the use of hacking.
Floatzel cannot learn Hydro Pump in any of the Pokémon games as of Generation V.