Just like you and me, fish can tolerate different levels of stuff in our air or water. For example, some people can tolerate a high level of pollens in the air, and some people get sick easily when there are pollens in the air.Think of the people who can't tolerate pollens in the air as Freshwater Fish and the ones that can as Saltwater Fish. A lot of it has to do with your environment and genes, and a starfishes environment is in the sea, so they have adapted through evolution to the saltwater in their environment.
Sea fish need the sea water nutrients that's why there in the sea water.
beacaus if they live in fresh water they will die they must live in their inviroment like all animals now can a dog live in water no see that's why it cant live in fresh water
sea anemones live in places with cold water
Because they need some of the bacteria in the salt water to live. the fresh water doesen't provide the certin bacteria that the other water has.
most likely not. they'er "salt water" shrimps so they cant live in fresh water. sorry if that didnt answer your question.
i think killer whales cant live in fresh water because the need to eat and all of the big fish are in salt water
Because it is a mammal and it can only stay in water for a certain amount of time.
possibly because brackish is a mixture of fresh and salt water and goldfish cant live in salt water so yeah most likely.
No they can not. Clownfish are saltwater marines. They can only live in salt water...
sea anemones live in groups
Yes, Plankton can live on fresh OR salt water.
fresh water?
flounders live in salt water. flounders can't live in fresh water
I think trout, fresh water shrimp, fresh water crayfish, caddisfly lava live in fresh water.