When your talking to the guy in front of the house there is water and the grimer and muk are in it.
In the Platinum it is 44, but I am not sure about Heartgold and Soulsilver.
By evolving Grimer
You find Grimer in the Fiery Path. They are rare is it may seem that they are not there but they are. Its worth the time getting Grimer then evolving it to Muk, because Muk is probably one of the stronger Poison type Pokemon that are in Emerald!
For Grimer to evolve, get him to level 38.
When your talking to the guy in front of the house there is water and the grimer and muk are in it.
In the Platinum it is 44, but I am not sure about Heartgold and Soulsilver.
Go into Pokemon mansion which is found on cinnibar island once inside wait until a wild Pokemon appears. Grimer is not that rare to find but you can find it.
No you find it in Pokemon mansion.
Whit forest
By evolving Grimer
IN the Pokemon mansion you can find, ratatta, kofing, Picachu, grimer, and if your lucky, you will be able to find, Muck
Yes, Grimer can be caught in Pokemon Fire Red.
You find Grimer in the Fiery Path. They are rare is it may seem that they are not there but they are. Its worth the time getting Grimer then evolving it to Muk, because Muk is probably one of the stronger Poison type Pokemon that are in Emerald!
Grimer does not have a pre-evolution. The Pokemon before Grimer in the PokeDex is Dewgong, evolution of Seel.
in route 212 hope this helps
Route 212 with the poke Radar