Did you set it on Wombo?
sootopolis city
underwater above sootopolis in the seaweed but he's really rare
You get it in Sootopolis city. If your playing Ruby or Sapphire. You would be fighting Wallace. In Emerald, You fight Juan.
In Ruby, Saphire, and Emerald I believe It's in Sootopolis City.
you have to break all of the tiles and stairs will appear
in sootopolis
sootopolis
Go to sootopolis and dive in the front of sootopolis! =)
Sootopolis city.
Sootopolis City
in sootopolis city
Sootopolis
In sootopolis's Cave of Origin
You have to fish at Sootopolis City.
At Sootopolis City.
its in the cave where you catch groudon in sootopolis city
go to the cave of origin in sootopolis city