It will kill them/it. If you are refering to salt water at the same rate of specific gravity as ocean water wich is about 1.022, Then you will definitely kill your goldfish, It will take between 1/2 and 5 hours. If your goldfish are sick or icky you can dip them in saltwater for about 15 seconds or so and that will actually help them,(possibly) this does not always help but it will not kill.
The Salt
No, goldfish are freshwater fish.
No, goldfish are freshwater fish.
No, goldfish are freshwater fish.
Yes, goldfish will enjoy snacking on the kinds of treats intended for saltwater fish because saltwater fish foods contain more nutrients. However it is still best to feed a goldfish a regular goldfish flake/pellet diet, therefore only occasionally treating it to saltwater fish food.
Goldfish are freshwater, not saltwater.
No. Goldfish are freshwater fish and tropical starfish are saltwater fish.
No Clownfish are saltwater, goldfish are freshwater
No, not even close! Clownfish are saltwater tropical fish that belong to the Damselfish family. Goldfish are freshwater coldwater fish that belong to the Carp family.
Goldfish are freshwater fish and can not survive in saltwater environments (oceans, etc) They can only survive in freshwater (non saltwater such as ponds, rivers, and lakes).
no, goldfish are freshwater fish and coral only grows in saltwater, though they do occasionally eat plants
There are numerous differences not only in the type, body shape and even colours, but the fact that a goldfish is a freshwater fish, and a clownfish is a saltwater fish.
yes, dragonfish can live with any other docile, non-aggressive fish.