19highest level
Levels shown are Normal mode: -1 on Easy, +1 on Challenge.
This is around Boulder Badge — Mt. Moon and Cerulean City in the story — that page lists everything you can have caught by this point.
Types on this team: Water
| Pokémon | Moves | |
|---|---|---|
 | Goldeen Lv 19 · Swift Swim | Tail Whip Water Sport Supersonic Horn Attack |