no it will die quickly
To answer you question, They will die if you immediately put them in a pure saltwater environment. You can though slowly change the salt levels and make a fish adapt to the salt. But there only a few fish that can do this and the salt can only be a certain level. So you have to get fish that can take lower level of salt. Actually either way, meaning there are probably a few Saltwater Fish that can live in an low salt environment. That way you complete your look.
Generally, no. At best, they might be able to adapt to brackish water.
It lives in both. It is primarily a saltwater fish but does adapt to live in strictly freshwater (not just brackish)
Because saltwater fish can only breathe in saltwater (as in the ocean) and freshwater fish can only breathe in freshwater (as in tap water.)
There are freshwater drum, and saltwater drum species.
saltwater
They are freshwater fish.
A saltwater fish tank can be half freshwater and all of the saltwater fish will live but not for very long.
saltwater
They are freshwater fish.
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.
They are Saltwater fish.
Well, there are 2 types of fish, saltwater fish, and freshwater fish. Only put in saltwater if you own a saltwater fish. Note: Saltwater fish could live safely in freshwater, but freshwater fish will suffocate in saltwater.
Redfish are fresh water