Shellder is a fairly common water type Pokémon. It can be found on the Seafoam Islands as well as route 6.
bob
in route 201
I know firered can, if you seen a shellder look at it on your pokedex and check its area if it says unkown you will HAVE to trade a shellder to leafgreen from firered.
Well it depends on what version your playing if firered you can find seel, magikarp, shellder, zubat, golbat, tentacool, articuno. If your playing leafgreen you won't find shellder instead you will find slowpoke everything else you can catch.
you have to get slobro to throw it of during a harsh battle!
The only way to get Cloyster is to evolve Shellder.
You can find Shellder commonly in Route 21, Vermilion City, Cinnabar Island, Olivine City, and Seafoam Islands. You will need to fish in the bodies of water to encounter it in the wild.
Shellder appears in the bodies of water in the lower part of Route 205, the Valley Windworks, and Fuego Ironworks. You need a Super Rod to catch one.
Shellder evolves when you use a water stone on it.
find a shellder in the water of pallet town then give it a water stone
You cant find Shellder in Leaf Green. You can find Shellder in Fire Red in these locations: Route 25, Cinnabar Island, Icefall Cave Entrance, Lavender Town, One Island, Pallet Town, S.S. Anne (Fish)
You fish for it in the town the third gymleader is with a super rod.