OASE Heatup Aquarium Heater, 100W

Your fish thrive when their water stays warm and steady, and the OASE HeatUp Aquarium Heater in the 100-watt size is built to deliver that comfort. As a submersible heater designed for both marine and freshwater tanks, it helps create uniform temperature levels throughout your aquatic environment. The 100-watt rating is a practical middle option, offering dependable heating for medium aquariums where you want reliable warmth without excess power.

• The 100-watt output is well suited to medium-sized aquariums.
• A submersible heater designed for both marine and freshwater tanks.
• Works to create uniform temperature levels for a comfortable home for your fish.
• The control system allows accurate readjustment of the temperature within +/- 6F.
• Includes a post calibration tool so you can fine-tune the setting after installation.
• The temperature scale can be adjusted between 66F and 90F to match your tank.
• Built for submerged use, so it sits discreetly inside the aquarium.
• Features a thermal shutoff switch for added protection.
• An activated control light displays the heating function so you can check it at a glance.
• Temperature levels are monitored and controlled by bi-metal technology for automated heating.

For pet parents who would rather not babysit their tank temperature, the HeatUp 100 keeps things easy. Set your preferred temperature on the adjustable scale, and the bi-metal technology takes over with automated heating, holding the water where you want it. The post calibration tool lets you sharpen accuracy after setup, the control light confirms the heater is doing its job, and the thermal shutoff switch offers added protection during submerged use. It is a steady, no-drama heater for the medium aquarium that wants consistent warmth. Give your fish the cozy, stable environment they love, and let the OASE HeatUp 100 maintain it quietly so you can simply enjoy your tank.