Ruby - The Ruby is found in Mt. Ember after you confront the two Rocket Grunts blocking the entrance. Walk into the entrance, and you should find it if you navigate it successfully.
Sapphire - This is found in Dotted Hole, but you must first go to Icefall Cave in Four Island and help Lorelei confront some Rocket Grunts. Stand in front of the door at the entrance of Dotted Hole, go to the menu and let a pokemon use the HM Cut (must be done through menu.) There will be four holes and you must choose the right hole to fall through (the holes to fall through are Up, Left, Right and Down.) Once you find the Sapphire, Scientist Gideon will steal it and try to sell it to Team Rocket. Go to Five Island and enter the Rocket Warehouse (you must know both passwords to get in), solve the puzzle and confront Gideon. Once he is defeated, he will give you the Sapphire and you can give it to Celio.
You can't find one you need to trade one from FireRed/LeafGreen/Ruby/Sapphire or Emerald
Diglett is not in sapphire trade with firered or leafgreen to get one.
You can't. You have to trade it from firered.
The sapphire and Ruby (you can find both in the game) allows you to trade with Pokemon ruby, sapphire and Emerald version give it to Celio and when you give both to him it will allow him to connect with the Hoenn region allowing you to trade with those versions
Shroomish is not available to be caught in the wild in Pokemon FireRed, it must be traded from Ruby or Sapphire.
In dotted hole on six island.
Sadly, you can't catch Groundon is the Sapphire Version, however you can in the Ruby version, you will find him in the same place you find Kyorge in the sapphire version.
No, it isn't possible to find Eevee in Sapphire. You'll have to trade one from FireRed/LeafGreen.
no but you beat the game you may migrate a mudkip from Pokemon emerald version /leafgreen/firered/Sapphire/and rubie.
It depends which version you are playing. Red/Blue version: You can find Koffing in the Pokemon Mansion, however he is rare in Blue version. Yellow Version: He cannot be found in Yellow. Gold/Crystal/Silver version: You can find him in Mahogany Town or the Burned Tower. Ruby/Sapphire/Emerald version: You can find him on the Fiery Path, however he is rare in Sapphire version. FireRed/LeafGreen version: You can find him in the Pokemon Mansion, however he is rare in LeafGreen. Colosseum: He cannot be found in Colosseum. XD: He cannot be found in XD.
Yes you can but you have find the gems first .
You can't find a Vulpix in Pokemon FireRed version. That pokemon is version-exclusive to Pokemon LeafGreen.