on route 201, use poke radar in grass (P'S it's only on pearl)
Jigglypuff, Celefairy, Nidorino, Nidorina, Skitty.
Clefairy is the only Pokemon in pearl that evolves with a moon stone but once you get the national dex you can evolve Jigglypuff, Nidorino, Nidorina & Skitty
Nidorina Nidorino Clefairy Jigglypuff Munna Skitty
it evolves Skitty -> Delcatty Nidorino -> Nidoking Nidorina -> Nidoqueen Clefairy -> Clefable Jigglypuff -> Wigglytuff
it evolves nidoran,nidorino,clefa,clafairy,jiggleypuff,igglybuff. those pokemon oh dont forget skitty!
A Moon Stone evolves Clefairy into Clefable, Nidorina into Nidoqueen, Nidorino into Nidoking, Jigglypuff into Wigglytuff and Skitty into Delcatty.
These are the Pokemon you can find in Pokemon Diamond, Pearl, or Platinum in Route 221 (Some are version exclusive): Wingull, Floatzel, Roselia, Shellos, Gastrodon, Sudowoodo (Pearl and Platinum only), Stunky (Diamond only), Skuntank (Diamond only), and Girafarig. (Platinum only) You can find these Pokemon by surfing: Tentacool, Tentacruel, Wingull, and Pelipper. And fishing: Magikarp, Finneon, Lumineon, Gyarados, and Clamperl. (Diamond and Pearl only) You can encounter Farfetch'd during a swarm on Route 221. Nidorina and Nidorino can also be found using the Poke Radar. (Nidorina is common in Diamond, Nidorino is common in Pearl) The rarest Pokemon you can find are: Wingull, Shellos, Gastrodon, Roselia, Tentacruel, Pelipper, Clamperl, Nidorino (in Diamond), and Nidorina. (In Pearl)
Nidorino is always male! Nidorina is a female, Nidorino evolves into Nidoking, and Nidorina, Nidoqueen!
Nidorino doesn't evolve by level it evolves by moon stone
Nidorino will evolve when you use a Moon Stone on it.
Nidorino evolves using a Moon Stone.
as far as i no u cant catch it on diamond or pearl you hav 2 catch it on games like fire red and then migrate it