Sorry (very) to say, but Clamperl will not evolve through leveling up. First, make it hold either a Deep Sea Tooth (Huntail) or a Deep Sea Scale, and Trade it to someone, or yourself if you have an extra gen 3 game and another GBA. It will evolve when traded depending on what it is holding.
Chat with our AI personalities
Poochyena is a dark type of Pokemon. In Pokemon Emerald it will evolve if you raise it up to level 18.
aipom does not evolve inpokemon emerald
sableye does not evolve
wynaut will evolve in level 15
it doesnt evolve by level, you have to trade it.