No,but if you get Pokemon Ranger and get a Manaphy Egg and you have a Ditto you can get a Phione.
No.
Use action replay code..
you cannot see phione in Pokemon platinum. the only way go see one is to get a manaphy from doing a secret mission in one of the Pokemon ranger games then put it in the day care with a ditto. wait awhile and talk to the old man outside the day care center and he will give you an egg this then hatches into a phione
First, you have to get a Manaphy into you game. Then capture a ditto and put them in the day care center. It's the only way to see Phione. You can get Manaphy by transfering the egg from Pokemon ranger.