Where to catch, #0116
Horsea in Ruby and Sapphire: 3 places, levels 25 to 30
3 encounters by area
Places
Route 132, Route 133 and Route 134
Other games
Also found in 18 other games
Red and Green (Japan)Blue (Japan)Red and BlueYellowGold and SilverCrystalEmeraldFireRed and LeafGreenDiamond and PearlPlatinumHeartGold and SoulSilverBlack and WhiteBlack 2 and White 2X and YSun and MoonUltra Sun and Ultra MoonLet's Go, Pikachu and EeveeThe Isle of Armor