Single post in Evolving Feebas
Check out this earlier help thread! Someone else had a similar problem that I think should be answered there :V
QUOTE originally posted by Arsenal
Ah, your beauty isn't maxed, only your Sheen is. If you want to be able to evolve it, you should reset the Sheen with a black pokeblock (or grab a different feebas) and feed it different kind of blue pokeblocks. This Guide shows you how to. You need to have some Blue Pokeblock III (made with Starf berries) and Blue Pokeblock III+ to evolve your feebas.