Feebass need's to have maximum beauty to evolve! Since feebass are rare and can only eat a certain amount of poffins it it would be wise to breed it. When you find a feebass that likes "dry poffins" it's time to find pamtre berries. They can be found at heart home city in Pamtre square or by visiting the berry master who is near heart home city. They are rare so it might take a while. Once you collect a pamtre berry plant it at diffrent area's in sinnoh. Once you've obtained enough berry's 10-20 should do go to heart home city and make poffins. Be sure to save your game before makeing poffins and have feebass in your party too. Begin makeing poffins and feed them to feebass. After feebass beauty is at maximum you must raise it up a level. I suggest fighting pokemon near veilstone city you can even use an experience share or also you can begin with it in your party and switch it with a stronger pokemon. Also if you have a rare candy you can use that to raise it up a level. If you've done all of these feebass should have evolved into milotic if not restart you game and make more poffins and try training it up again.
It doesn't evolve by level but by maxed out beauty.
you need a prism scale Feebas has to hold it then it will evolve
In order to evolve feebass first max out its beauty then level it up it should evolve.
Increase Feebasse's beauty stat by a pokeblock.
You trade it holding a prism scale
feebass is at mt.cournet.you need a super rod on the way there. sometimes feebass could be there but not all the time.Hope this help =)
Feebass does not evolve at a specific level, you need to increase its beauty to maximum using poffins (in Diamond/Pearl/Platinum) or when traded while holding a Prism Scale (Black/White) You can still evolve it in HG/SS, by taking it to the various grooming places. While the grooming normally increases friendliness, it also increases Beauty, even though this is never used or shown in any other way.
In generation 5 since there is no beauty stat for Pokemon you give the prism scale to feebass and trade it. It will evolve into milotic :D hope this helps
You Don't
good rod
in mt cornet
You can transfer Feebas from the PokeWalker.