i can't really remember what level i got mine to evolve at but i think it was level 30 if that dose not work use a water stone.
Barboach evolves into Whiscash at level 30 :]
Barboach evolves into Whiscash at level 30.
Barboach evolves INTO Whiscash at Level 30
Barboach evolves into Whiscash.
barboach evolves into whiscash at level 30
Barboach evolves INTO Whiscash at Level 30
Barboach evolves INTO Whiscash at Level 30
No stone evolves it you need to level it to level 30
It's actually Barboach and it evolves at level 30 into Whiscash
Barboach evolves into Whiscash at Level 30 in Pokémon Ruby, Sapphire, FireRed, LeafGreen, Emerald, Diamond, Pearl and Platinum.
whishcash does not evolve unless you mean barboach he evolves at level 30
It evolves at level 30 =D