Do All Fish Need a Heater

Freshwater fish tanks need heat or not according to the type of fish being kept. Cold-water specimens don’t require a heater, but not all freshwater fish can survive in cooler waters: some freshwater fish are tropical or sub-tropical.

What fish do you not need a heater for?

NameTemperatureShopGloFish (Danio)64°-75° FVIEW PRICEWhite Cloud Minnow64°-72° FVIEW PRICEGuppy64°-82° FVIEW PRICE

What fish can live in room temperature water?

Goldfish: Goldfish are the most commonly kept fish in an unheated tank. They come from cooler waters in Asia which makes them excellent candidates for unheated tanks. Many people think of goldfish as boring orange fish, but goldfish come in a wide variety of shapes and colors.