Heaters & Chillers

Maintaining stable water temperature is essential for a thriving saltwater reef aquarium. At Bulk Reef Supply, our curated selection of premium aquarium heaters, chillers, cooling fans, thermometers, and temperature controllers helps you keep your tank within the ideal temperature range all year long.

Tropical reef aquariums are typically maintained with stable water temperatures of 75° - 78°F at all times and a reliable aquarium heater is important to maintain temperature stability. Size your heater at 3-5 watts per gallon of aquarium water; e.g. a 10 gallon tank should have a 30 - 50 watt aquarium heater. Always incorporate redundant systems for both heating and monitoring to ensure reliability. We highly recommend keeping a backup heater on hand, as even minor fluctuations in water temperature can stress your fish, corals, and invertebrates, compromising their health and immune function.

For reef tanks in warmer climates or for species from temperate environments, our quiet, efficient aquarium chillers offer dependable cooling performance. These chillers help prevent overheating, maintaining consistent water temperatures that support healthy biological activity and coral growth.