How hot should my goldfish tank be The ideal water temperature depends on when the fish is active, what size the fish is and its body mass. If your goldfish is active at night, a temperature that ranges between 65-75°F will be ideal. If your goldfish is active during the day, it should be kept at a temperature that ranges between 70-85°F.
Do Goldfish Need A Heater?
The reason goldfish do not need heaters is because they are temperate fish. Out of the available goldfish species, the maximum is cold-water fish. That means they can quickly adapt to the low water temperature. But if you have kept a combination of different goldfish together, you might want to install a heater.
Can Goldfish Live Without Heaters?
They live over 15 years and grow over 10 inches in length. Ideal water temperatures for goldfish are range from 65.0 to 72.0° F, but they are hardy enough to handle fluctuations in tanks or bowls without heaters to manage a steady temperature. We still advise against it, as fluctuations reduce their longevity and promotes stress in your goldfish.
Does My Goldfish Require A Heater?
Most goldfish don’t need heaters. Goldfish can survive cold temperatures. However, you might need a heater if you have a very fancy goldfish. If you want to know more about whether you should get a heater for your goldfish, you should keep in mind what kind of goldfish you have. Basic goldfish care tips can be very useful as well.