I'm with the others that goldfish don't need salt. However, I noticed that you said "table salt" and I wanted to mention that if you ever need to treat your fish with salt - any fish, not just goldies... NEVER EVER EVER use table salt. It has other stuff in it that is BAD for fish. Repeat after me and always remember "I will never put table salt in my fishtank. I will never put table salt in my fish tank. I will never put table salt in my fishtank."
If you need to put salt in your tank (low concentrations can be used to help with various ailments) - us aquarium salt. Its safe for fish.
Carol, if those temps were Fahrenheit, the tank would be frozen solid. Water freezes at 32 degrees, remember?
