Yes, you need to use your Good Rod at the Floaroma Town side of Route 205
you catch that Pokemon in the same place as sharpedo
Pokemon 135 is lumineon you can either evolve a finneon or else catch it in the water above sunny shore city
you cant catch it in the wild.2 options.One,obtain it in a trade.Two,catch a finneon and evolve it
Evolve a Finneon at level 31 or catch it at route 205 with a Super Rod.
Finneon evolves into Lumineon, but Lumineon is the final evolution.
i dont think you can catch lumineon with good rod but if your working on your pokedex a trainer has lumineon (pokemon #135) if you surf up from sunyshore city then immediatly go right if she's not there keep going up a little
Lumineon is the 135 pokemon, catch a finneon and train it or catch one in route 219 or 220 or canalave city using super rod.
Lumineon
route 218 super rod
fish at Iron Island
Lumineon
they are finneon and lumineon