I know this is a pretty stupid question but, how do I know when to evolve a feebas, I heard you just need to have max beauty and level up, but when I tried it, feebas didn't evolve. People have been telling me to level up feebas to level 20, is that how it works? And what berries are recommended for giving feebas max beauty?
I had this problem too and I nearly pulled my hair out over it. So heads up, the Feebas' nature has to be Modest, Mild, Rash or Quiet for it to evolve as well. I got a Rash one and first try it evolved perfectly.