^ What she said. With winter around the corner, I'd go ahead and buy the heater.

Just be sure to go to a fish store for advice. Look in the phone book or online for a fishie supply store. You're more likely to get sound advice by talking to someone who knows what they're doing. I never buy fish at a place like Walmart or Petsmart (I even love Petsmart) because you never really know what you're getting. Some people would disagree with me, I'm sure.

Remember, goldfish (and other fish like Oscars) are very dirty fish, so if you end up with goldfish, make sure you have a good filtration system and a large enough tank to be able to keep it sparkling clean.


Good luck and post pics when you by your setup.