if you mean trade them back you can't because they are already on your game unfortunately Hope this helps
You can do this after you find the Ruby and the Sapphire for Celio in Pokemon FireRed. then you can trade with Ruby, Sapphire and Emerald.
Pokemon Emerald: Birth Island Pokemon Sapphire: Trade from Pokemon FireRed, LeafGreen, or Emerald. Pokemon Ruby: Trade from Pokemon FireRed, LeafGreen, or Emerald.
You have to trade one from Emerald.
Trade from Sapphire/Emerald.
It Is Illegal!!
trade it from ruby or sapphire.
No, you have to trade from Ruby / Emerald.
You can't catch it on Sapphire. You have to trade it from Pokemon Emerald/FireRed/LeafGreen
You can trade with another sapphire, ruby, emerald, firered, leafgreen, Pokemon colosseum, Pokemon xd gale of darkness and Pokemon box ruby and sapphire.
Trade it from Pokemon Emerald/Ruby/Sapphire
only when you get the national dex on Sapphire version
You can not get Meditite in Emerald. You must trade from Ruby or Sapphire.