Hi! I was just wondering what the best temperature was for goldfish?? Can they be kept ina tropical tank?
But Butterfly, what if the temperature gets too cold or fluctuates too much?. Could they get sick? I have always used a heater with my goldfish. It's turned WAY down. I keep it at about 19-20 celsius. Am I harming them? They seem fine?Yes goldfish do much better in an unheated tank.