The difference is all fish stay alive in different types of water warm,cold,fresh, salty. They do different things in different water
Maybe that saltwater animal can endure hard water and freshwater animals can't.
saltwater has salt in it, freshwater does not.
I think marine aquariums are saltwater unlike freshwater that do not have saltwater
The same as in the ocean
The fact that a saltwater ecosystem has salt in it. 'salt'water ecosystem
saltwater will corrode the aluminum and metal from an engine more than freshwater will. Therefore engines used in saltwater need sacrificial anodes to be the vulnerable part, thus protecting the engine.
Freshwater mussels live in rivers, while saltwater mussels live in oceans. Even though it is mussels, it differs a lot. Freshwater mussel and saltwater mussels hunt different things, because they live in different places.
freshwater lake has no salt and saltwater has many salt particles
Certain freshwater fish can survive saltwater conditions; examples are black mollies, mono's and scats. All of these fish aren't truly freshwater or saltwater, they are Brackish. Brackish is between freshwater and saltwater, and so these fish are highly adaptable.
umm the salt water is used to ahving salt in its natural habitat and the fresh water is not
salmon
Fresh water.