Grimer will evolve into Muk if you throw 3 Pester Balls at it. Even the first and second Grimer can evolve if you manage to hit 3 pester balls at them, but are far away and wont give a good shot anyway.
If you take a picture of the first Grimer, another (3rd) one will appear in the next room, just below the opening. If you take a picture of the second Grimer, another (4th) will appear in the next room on the left side, sitting on a rock.
The 3rd Grimer/Muk is your best bet (and probably the only one) that can give a size of 1000. You can get a special pose of 1150 if you take a picture of Grimer getting hit from a Pester Ball. Otherwise you can get a 1000 pose if Grimer/Muk is facing you, or if Muk is hit by a Pester Ball.
4000 is the highest score possible for Muk, 1000 for pose+size and x2 for technique.
4300 for Grimer, with 1000 size and 1150 pose, with 2x technique.
Good luck.
Muk is the better pokemon
A Muk Isn't A Very Special Pokemon. It Evolves From A Grimer, Which In The First Who Pokemon Games(Kanto And Johto Regions) Aren't That Hard To Find. ^.^ But, It's Hard To Find A Muk And Catch It.
you can't catch muk in emerald but you can catch grimer in the fiery path and get him to level 30 and he will evolve in to muk okay
By evolving Grimer
When your talking to the guy in front of the house there is water and the grimer and muk are in it.
Muk is the better pokemon
A Muk Isn't A Very Special Pokemon. It Evolves From A Grimer, Which In The First Who Pokemon Games(Kanto And Johto Regions) Aren't That Hard To Find. ^.^ But, It's Hard To Find A Muk And Catch It.
Muk is #89 in the national pokedex, and it is a Poison type Pokemon.
you can't catch muk in emerald but you can catch grimer in the fiery path and get him to level 30 and he will evolve in to muk okay
grimer evoles at level 32 to muk because i have 10
By evolving Grimer
You can use some help with the Pokemon powers. Or capture the Muk forst because it's stronger. Watch out for the Mud trial!
Koga's Pokemon are: Koffing Muk Koffing Weezing
only tyranitar because he is a ground type pokemon if muk will attack than it will not work on tyranitar
search Pokemon snap faq on Google for answers.
When your talking to the guy in front of the house there is water and the grimer and muk are in it.
Muk, I'm not so sure about, but go to this site for help http://www.psypokes.com/dex/psydex/089/attacks