on the east side exit of jublife city or you could get the good rod which catchs better Pokemon
a super rod is the best rod in Pokemon pearl/dimond/platnim
In route 218 there is a fisherman on the way to canavale town talk to him and he will give you the old rod
You can find the Old Rod, or as you called it the Normal Rod, towards the left of Jubilife City.
old, good, & super
You can catch it in route 225, in the water, but make sure to use good rod not super rod or old rod
old rod going to canalave city good rod rt209 i think and super rod after getting national pokedex fight area
Pokemon Diamond & Pearl: By surfing - Golduck Using Old Rod - Magikarp Using Good Rod - Magikarp and Goldeen Using Super Rod - Gyarados and Seaking Pokemon Platinum: By Surfing - Golduck and Psyduck Using Old, Good, or Super Rod - Magikarp
1) catch a magicarp with an old rod 2) evolve it. or catch 130 "gyrados" with a super rod at various locations.
on your way to canalave city before you surf there is a fisherman and kill him by Jake
There is no way to get a Shiny Magikarp 100% of the time.
If you use a good rod,they appear less than with the old rod,and if you use a super rod,they appear less than with the good rod.=)
I don't think there is one. But I do know this! POKEMON DIAMOND AND PEARL- ULTRA ROD IN FRONT ON ENTRANCE TO ROUTE 255 POKEMON PLATINUM- OLD ROD GAVE TO BY CYNTHIA'S GRANDMOTHER POKEMON BLUE RED AND YELLOW- NO ROD FOUND YET