you will need the super rod. you will find him i think on that really long bridge.
Qwilfish is a Water and Poison type pokemon.
you can't catch qwilfish in emerald. the only gba Pokemon game that I know has qwilfish is fire red. However to the answer stated above you can catch Qwilfish in Pokemon Colloseum, purify it, and then trade it to Emerald via. a GNC/GBA connector cable.
Qwilfish can be found at Bottomless Sea.
Qwilfish is rarely found in Routes 12, 13, and 32
Qwilfish is #211 in the national pokedex, and it is a Water-Poison type Pokemon.
First of all, it's spelt QWILFISH. Secondly, it doesn't. Qwilfish has no evolutions.
qwilfish, scizor, shuckle
Only firered can capture qwilfish trade one from firered to leafgreen.
You can only get Qwilfish in Emerald by trading from Firered.
use the super rod in five island
Quilava, Quagsire, Qwilfish, and Quilladin.
no you can trade soulsilver pokemon to black