Tuna are all marine (saltwater) and they are predatory, so yes, tuna eat Saltwater Fish. They can only eat saltwater fishe because they do not live in freshwater.
Tuna eat smaller fish, but they live in salt water, not fresh. Edit: That's not quite 100% true. While the tuna that we all get in the store is saltwater, there's a lake in Nicaragua that has freshwater tuna living there.
Tuna fish eat other fish, squid, shellfish, and plankton. no, tuna fish do not eat seaweed. no poop
Tuna are predatory and eat meat such as other fish and invertebrates.
Tuna eats small fish which eat zooplankton.
Tuna fish are not filter feeders. Tuna usually eat surface fish, or even lancetfish. They may also eat other tuna.
Yes, tuna fish do eat cuttlefish.
The tuna is a carnivore. It must eat to survive, and it eats other fish because it cannot eat plants.
no
Tuna are predatory and eat meat such as other fish and invertebrates.
they eat little fish
hell no! Tuna are at the top of the marine food chain... things that eat krill are like smaller fish or whales... tuna eat other types of fish.
Salt water fish eat fish that are smaller than them then those fish eat zoo plankton then zooplankton eat phytoplankton. I have appreciated answering these questions so if you have anymore go to askanything.com Also, it really depends on the fish.