i don't know but if you go to the sky piller and you keep going left were the current and land on a small peace of land there. if keep fishing for a while with a super rod you will find a rare colored sharkpedo
they are rare and different colored like the red gyarados
there are lots of ways to get rare Pokemon in platinum. For example, on January 30 2010 go to a GameStop and you can get the Pikachu-colored Pichu.
They're rare, so you just have to find one by chance.
snow point temple. two rare Pokemon
Not really that rare... in Pokemon Diamond you can find Sunkerns on Route 204
With luck and with the right game you can get rare colored or shiny dialga
shiny Pokemon are rare you can find them almost any were but they are super rare
You need to be on high rankings and talk to certain people to get the mission for that rare or legendary pokemon. Also, for the different colored pokemon, you just need to keep searching around.
No colored Pokemon are to remain wild rare Pokemon you should go to codejunkies
Tropius is not rare.
Look for them in the grass
n e where