The devil fish (Mobula mobular), also known as the giant devil ray, feeds on crustaceans and small schools of fish.
Wild fish eat little insects. They also eat algae if they're in a pond. Please improve this answer if you can, thanks:)
Clownfish primarily feed on algae, plankton, small crustaceans, and zooplankton in the wild. In captivity, they can be fed a diet of meaty foods such as mysis shrimp, brine shrimp, and commercial fish flakes or pellets.
If the fish are tiny yes they will eat them. They can eat a fish as big as a feeder goldfish!
Asking this is like asking "What do animals eat on land?". It's far too generic a question. There is no one correct answer. Some fish are carnivores (meat eaters), some are herbivores (plant eaters), and some are even omnivores (eaters of both plant and animals), some are predators, some are scavengers, some are parasitic. I would venture to say that for the most part, wild fish eat just about any form of organic material, living or dead, animal or vegetable. They eat seaweed, crustateans, other fish, mammals, birds, mollusks, all forms of plankton, waste material (from ships, etc...), just to name a few things.
ducks eat grasses,grains,water plants,fish,and insects
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:)
They eat planktonic crustaceans and small schooling fishes.
no
A devilfish octopus eats crabs and other things.
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.
no. only mosquito fish do.
Bears, eagles,