Most large fish are predatory; thus they usually eat smaller fish.
If the fish are tiny yes they will eat them. They can eat a fish as big as a feeder goldfish!
no, wild fish must get sick if they eat fish food
No. They will eat them. They eat fish in the wild, too.
You could use a big beetle, but the best kind of bait would be a small fish, such as a sardine, because tuna are big fish that eat smaller fish when in the wild.
Just about every fish that is big enough will eat them as will many water birds like Egrets, Kingfishers and Herrons.
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
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.