Gyarados is rare to catch, but you can try in the water of Sootopolis City. It's much easier to catch a Magikarp and evolve it into Gyarados at level 20. You can find Magikarp anywhere by fishing with the Old Rod.
magikarp.....
only magicarp
Using the Old Rod in Pokemon Ruby (or any Pokemon game for that matter) will get you a Magikarp as that is the only Pokemon an Old Rod can catch.
only low leveled magikarp
Wailmer cannot be found in Pokemon Black. They are found in the old games.
well there is to ways to make it evlove first make your wailmer to the daycare or give it to this old man and he makes it evlove
if you mean the sudowoodo, then you need to water it with a wailmer pail a few times and it will attack you (u can catch it)
U don't =3
Lombre isn't a water Pokemon you find it in the grass by Lanettes house
You can catch a magickarp using an old rod in sapphire by simply combine it with AR cheats.
you don't
The only way you can Migrate Poke'mon into the Pearl is if you use the Pal Park and you can only catch six Pokemon from you old games at a time. (NOTE* Tat if you take Pokemon from your old games you cannot put them back in old games)
Pocket Monsters Sapphire Version [Japanese Version of the game] was released on November 21st, 2002. Pokemon Sapphire Version [American Version Release]: March 17th, 2003 Pokemon Sapphire Version [Australia]: April 3rd, 2003 Pokemon Sapphire Version [Europe]: July 25th, 2003 So currently, it is about 8 [9 in November] years old in Japan [2011] and 8 years old in America, etc. ~Pokemon fan
The old man is not a Pokemon
delete your old one
Catch it in route 115, from rustboro city go north and use surf keep going north right pass the old and in the patch of grass there.