it depends on the type of fish, you can generally find a special food made for your type of fish at the petstore.
small fish
It depends on the type of fish it is
small fish
they eat fish and peas
Red fish eat red food my frend red food...
They eat fish from the the Polar ocean.
flakes
other fish
they ate fish.
It depends on the type of fish it is
They eat fish and fish eggs rolled up in seaweed
Penguins eat fish. They swim after the fish and grab them in their beaks.