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Obviously, piranhas do, and though bettas don't necessarily eat their companions, bettas fight fiercely and excessively, unless you get the peaceful betta, which is strongly recommended for home aquarists. Larger fish, such as angelfish, may eat extremely small fish such as guppies.
What else can I help you with?
What do whales eat and what do fish eat?
Whales eat krill and other fish. Fish eat other fish, depending on what type of fish it is.
Do fish eat mosquitoes?
There are fish that do eat them, but not ALL fish eat them.
Does crabs eat small fish?
no they eat dead fish no they eat dead fish
Could a fish eat a fish?
yes a fish can eat a fish for example many bigger fish eat bottom eaters.
Does fish eat only worms?
No some fish eat smaller fish which eat even smaller fish
What do ice and tooth fish eat?
tooth fish eat people tooth fish eat people tooth fish eat people
What does a fish in a sea eat?
It would depend upon the size of the fish. Small fish probably eat plankton. Larger fish eat smaller fish. Some fish eat invertebrates.
What do large fish eat?
Large fish sometimes eat smaller fish or they will eat algae
What kind of fish eat fish that eat krill?
Lots of fish eat Krill!=O
What fish do seahorses eat?
they do not eat fish
Can fish eat?
Yes. fish eat.
What type of fish do seagulls eat?
They eat sea fish and fish.
