shark
Big fishes eat medium fishes as that's just part of the food chain.
Sharks! Really Big Squids! People what live on boats and eat fishes! Fishes what eat other fishes too!
they are not relly big predators but they are for some fishes and others
a fishes stomach is as big as its eye
Put them in separate tanks or put a divider in the tank.
some times the angel fishes attack the star fishes of smaller size. I lost my finger star , it is of small size and attacked by blue ring angel fish... But for angel fishes it's quite difficult to attack the big size star fishes, because of their hard skin...
fishes like whales dolphin and more big fishes can live in a aquarium
big fishes
No, not all fishes are herbivores. Some fishes are carnivores, meaning they primarily eat other animals.
It depends on the type of fish. Some are a few millemeters while others like sharks can be foot or two long.
Big groups of fish are called schools ex. a school of fish
Some say they need a 5 gallon tank, but a 1 gallon tank should be ok if they are by theirselves.