no. the goldfish may live for a while, but they'll die shortly. that's a guarantee. don't try to mix fresh and brackish water fish, it won't last.routoq said:A friend gave me a dragon goby for free and i put him in a 10 gallon tank. I put some gold fish in there for him to eat and he hasn't touched them, theya re still alive. Since the gold fish survived in the salt water, would the goby survive in the fresh wate?