No, the Pokeradar cannot be used on water.
To get a pokeradar in Pokemon diamond and pearl, you must see all of the sinnoh Pokemon in the game, then go to profeser rowan's lab and talk to him. he will give you a pokeradar and with it you can find Pokemon from other regions.
You can find ditto on route 218 with a pokeradar.
evolve a feebas
Pokeradar on route 230
You either find them randomly, or you use a chain with the pokeradar :)
keep on breeding one or just keep catching them Pokeradar is an option
You can't, the only way is to transfer it from a Pokewalker. To do that, you have to have unlocked Quiet Cave, and Feebas will be one of the wild Pokemon that appear when you use the PokeRadar. Catch it, then transfer it to your SoulSilver.
You cannot find a Feebas on the game but you can find a Feebas on the Pokewalker Route Quiet Cave
you can find a feebas in route 118 and 119 but its hard to find
you will find feebas in the water of grass maps in pokemon vortex
find it in seafoam islands contest if u win u get feebas
U can find feebas in Route 119.
Feebas are tricky to catch you can only find them in certain floors in Mt. cornet.
in the water
you cant find it you have to evolve feebas
the pokeradar is used to find shinies.IF i were to explain it it would take a while, so instead GOOGLE " how to use the pokeradar to find shineys" and they will give you a step by step guide on hoe to use it.
u can find feebas in 6 various places on route 119 near fortree city.