in eternal forest with poke radar
It is in enterna forest.
get your nincada to at least level 20 you also have to have a free space in your team
You go to eterna forest and there will be nincadas there but they are rare
Nincada cannot be found in Pokemon FireRed. You have to trade them from a copy of Ruby, Sapphire, or Emerald.
You catch it in Eterna Forest, not far south of the mossy rock. It's a little harder to find than other pokemon. Try it with a poke radar.
You can find nincada in the grass spots between the rustbarto tunnel and rustborto city
eterna forest with pokeradar
Nincada is a Ground and Bug type pokemon.
after national dex put in sapphire in Gba slot and get it in eterna forest
You can only find a Nincada in Eterna Forest. Keep in mind, they're pretty hard to find! So good luck!
You can't catch Shedinja in any of the Pokémon games, but you can get it in Diamond through evolution. You need to evolve Nincada while you have a spare slot in your party and a spare PokéBall. If you don't have these, Nincada will evolve into Ninjask instead. Nincada evolves at level 20. Nincada can be found in Eterna Forest, when you use the Poké Radar.
Need Pokemon Emerald catch a Nincada level it up until it evolves into Ninjask then evolving again into Shedjina then migrrate it to either Pearl or Diamond catch him in Pal Park and you have him.