It's the same for both games but anyways...Route 20, 21, 26, 27, 41, and 47, Also in New Bark Town, Pallet Town, Vermillion City, and Cinnabar Island.
Details:
Good Rod used: 3% chance of appearing, Lv.20, everywhere listed above.
Super Rod used: 30% chance of appearing, Lv.40, everywhere listed above.
Credit to Serebii.net; you guys are awesome!
Shellder is a version exclusive Pokemon only found in Fire red. But, Instead of Shellder, you can get Slowpoke, if you use a good rod in the Vermillion city harbor.
Shellder can't be found in the wild in Pokemon leaf green, you would have to trade it from fire red.
You can find it in Pokemon Platinum, Pokemon Crystal, Pokemon HeartGold, and Pokemon SoulSilver.
Go to the first city and fish off of the east side. Good rod is only 3% chance of catching one though, so it might take a while. I think you can also find them in pokewalker.
Find and then catch
bob
in route 201
Poliwhirl to Poliwrath Shellder to Cloyster Staryu to Starmie Eevee to Vaporeon Lombre to Ludicolo
The only way to get Cloyster is to evolve Shellder.
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.
you cant you can only get shellder in Pokemon fire red version sorry about it it made me mad to
a water stone makes certain Pokemon evolve like these: eevee-vaporeon staryu-starmie shellder-cloyster lombre-ludicolo panpour-simipour poliwhirl-poliwrath
Shellder is a version exclusive Pokemon only found in Fire red. But, Instead of Shellder, you can get Slowpoke, if you use a good rod in the Vermillion city harbor.
Shellder can't be found in the wild in Pokemon leaf green, you would have to trade it from fire red.
You can't find registeel in Pokemon HeartGold.
You can find it in Pokemon Platinum, Pokemon Crystal, Pokemon HeartGold, and Pokemon SoulSilver.
unkowns {pokemon}