One Island

Pokémon	When	Level	Chance
Tentacool	Any time	5–40	95%
Tentacruel	Any time	35–40	5%

Pokémon	When	Level	Chance
Magikarp	Any time	5	100%

Pokémon	When	Level	Chance
Horsea	Any time	5–15	80%
Magikarp	Any time	5–15	20%

Pokémon	When	Level	Chance
Shellder	Any time	15–25	40%
Horsea	Any time	15–25	40%
Gyarados	Any time	15–25	15%
Seadra	Any time	25–35	4%
Psyduck	Any time	25–35	1%