It depends on the species of fish, and also the age and size of the fish. There are carnivores, herbivores and omnivores. Some fish change their diet as they grow larger and the mouth size increases. There arte also seasonal changes in diet.
Answersome eat algea, sea plants,and other fish.
Answerweed, oatweed,seaweed and Pizza
ummm... me
no, wild fish must get sick if they eat fish food
No. They will eat them. They eat fish in the wild, too.
Wild fish eat little insects. They also eat algae if they're in a pond. Please improve this answer if you can, thanks:)
no
they might eat fish or something
Most large fish are predatory; thus they usually eat smaller fish.
DIRT.
In the wild turtles eat fish so they will probably eat your pet fish.
In the wild they eat the leftovers from their adopted anemone, in captivity they eat fish food.
no. only mosquito fish do.
Bears, eagles,
no but you can find out by google