yes. they are Freshwater Fish
Please don't. goldfish are freshwater fish, not saltwater.
No, absolutely not! Brackish water has salt water in it and it will die because of that!
Most salt water fish will die if placed in fresh water.
Yes. Freshwater fish do not drink water, but instead absorb their water requirements through osmosis from their skin cells. Salt water has a lower concentration of water molecules than the water concentration inside the body of the goldfish, thus water moves via osmosis from areas of high concentration to areas of lower concentration. In this case, water would move from the goldfish's body to the salt water, resulting in dehydration of the goldfish, and eventually, death.
it will die
beacuse it needs salt.
it would prob die because the salt water fish need salt water so yeah it would die.
They die because they can not live in saltwater, due to the salt.
It is best to not use salt in a goldfish aquarium unless as a treatment for parasites in the tank of a sick fish. The salt damages nitrobacter bacteria that help keep water quality good and causes the fish to produce a thicker slime coat which stresses out the fish thus making them more susceptible to disease.
die..and its body will float on the surface
There are certain types of perch that live in salt water, so in that case nothing would happen. However, if a fresh water perch was placed in salt water it would die. There are very few fish that can go between salt water and fresh water and perch is not one of them.
Yes Goldfish Can Die In Oily Water HeHe I Like Gold Fish :)