Actually, for battles Bold is the best Milotic nature. =P And its pretty easy to get its Beauty high enough as long as it doesn't hate the Pokéblock. I managed to get my Bold Feebas to evolve in Emerald after feeding it 12 Pokéblocks made from Kelpsy Berries.No, any nature that eats dry food will work, but Modest is the best nature if you plan on using it in battle.
Serious is a neutral nature so it isn't bad, but it isn't good for raising Feebas's Beauty. However, as long as you stick to good quality poffins everything should be fine.ok well my feebas is serious is that good ?