330 (silver) Fish
It costs 7 gold fish.
800 (silver) Fish
50¢ a piece on tuesdays
You can buy the dusk balls in Pokémon Diamond at various markets in the game. The dusk balls cost 1000.00 a piece.
160 (silver) Fish
160 (silver) Fish
20 Gold Fish
300 (silver) Fish
18 Gold Fish
330 (silver) Fish
240 (silver) Fish
It cost 5 gold fish.
60 Gold Fish
It costs 90 silver fish.
130 (silver) Fish
14 Gold Fish