Dough

 is a crafted item used as a food for fish in the player's Fish Displays.

Obtaining
can be either bought or crafted.

Breeding fish
can be used to feed fish in the Fish Display, Large Fish Tank, or Crystal Fish Tank to breed fish. If the fish are not fed, they do not reproduce or die.

is easier to obtain in bulk than Bug Eggs, but is less filling to the fish. Feeding three Dough is equivalent to feeding a single Bug Egg.

Gift
can be given as a gift to other characters.