Can you trade Pokemon from Pokemon fire red to Pokemon Pearl?

Put Pokemon Pearl and Firered into the DS. Make sure that you have the National pokedex in Pokemon Pearl. You can get it by seeing all of the Sinnoh Pokemon(excluding Manaphy), Then by seeing Rowan. Professor Oak with upgrade your pokedex.

Load Pokemon Pearl. At the Front Screen, instead of selecting your profile, choose "Migrate from Firered". Choose the Pokemon you want to trade to Pokemon pearl. You cannot trade Pokemon with HM moves.

Load your Game the Go to the Pal Park (South from Sandgem Town), then talk to the man to catch the Pokemon you migrated.

Will work with Pokemon(R) Diamond too! This is not to trade, but to migrate. To trade do this:

1. Follow Steps Above

2. Go to pokecenter on Diamond/Pearl, then enter.

3. Go upstairs and enter the union room WITHOUT AN ACTION REPLAY IN!

Go to the person you want to trade with once they have entered, Press A, then select trade.

4. You're Done!