116: Horsea 118: Goldeen

Seadra

117: Seadra

Kanto

	HeartGold	SoulSilver	FireRed	LeafGreen	Yellow	Red	Blue
Walking in tall grass or a cave
Seafoam Islands B1F						1% L37
Seafoam Islands B3F						4% L39
	HeartGold	SoulSilver	FireRed	LeafGreen	Yellow	Red	Blue
Fishing with a Super Rod
Bond Bridge			4% L25–35
Cerulean Cave 1F						25% L23	25% L23
Cerulean Cave B1F						25% L23	25% L23
Cinnabar Island			4% L25–35
Five Island			4% L25–35
Five Isle Meadow			4% L25–35
Green Path			4% L25–35
Icefall Cave waterfall			4% L25–35
Kindle Road			4% L25–35
Memorial Pillar			4% L25–35
One Island			4% L25–35
Outcast Island			4% L25–35
Pallet Town			4% L25–35
Resort Gorgeous			4% L25–35
Route 12					30% L25–35
Route 13					10% L20
Route 19			4% L25–35
Route 20			4% L25–35
Route 21			4% L25–35
Route 23						25% L23	25% L23
Seafoam Islands B4F	15% L40	15% L40
Tanoby Ruins			4% L25–35
Trainer Tower			4% L25–35
Treasure Beach			4% L25–35
Water Labyrinth			4% L25–35
Water Path			4% L25–35

Johto

	HeartGold	SoulSilver
Fishing with a Super Rod
Whirl Islands 1F	10% L40	10% L40
Whirl Islands B2F	10% L40	10% L40
	HeartGold	SoulSilver
Surfing
Whirl Islands B2F	10% L15–30	10% L15–30

Sinnoh

	Platinum	Diamond	Pearl
Fishing with a Super Rod
Sea Route 226	45% L30–55	45% L30–55	45% L30–55