Clefairy doesn't evolve by level, you'll have to use a moonstone on her.
Munna--------->Musharna. Clefairy-------->Clefable.
Clefairy cannot evolve into Clefable by leveling up in Pokemon FireRed. The only way to evolve Clefairy is by using a Moon Stone on it.
clefairy
no it does not evolve with a fire stone.
Clefairy evolves into Clefable when given a Moon Stone.
if you want to evolve clefairy you must have a moon stone you can get one at MT.Moon
use a moonstone to make it evolve
Sandshrew evolves at l.22 in pokemon crystal
You have to use a leaf stone to evolve weepinbell into victreebel.
nidorino nidorina jigglypuff clefairy evolve.
You have to use a moonstone
Clefairy will evolve when a Moon Stone is used on the pokemon. Go into the Bag and find a Moon Stone press A on it then Press A on Use then go to Clefairy press A and the evolution will begin.