Goldfish are indigenous to the East, where there are various freshwater habitats, ranging from temperate to tropical conditions. They are, therefore, pretty hardy, which fosters their popularity among aquatic enthusiasts.
People have selectively bred the goldfish for years to generate fancy species with diverse colors, body shapes, and fin types. However, this diversification also led to the rising confusion about the ideal temperature for goldfish.
Many keepers believe the fish can withstand a broad range of temperatures, whereas others think they should set up a heater to keep the tank temperature under control.
Do goldfish need a heater? The answer mainly relies on the goldfish you raise. If you’re keeping regular goldfish, you don’t need to install a heater. But most fancy goldfish breeds will require the best aquarium heater to thrive.
What types of goldfish could do with a heater? What if the temperature is too hot or too cold? Let’s figure out the answer!