Aquarium Heaters

Slim Heater by Hydor is a compact, fully submersible heater, suitable for small aquariums, tanks or glass bowls, up to maximum 10 US Gal. Designed to increase the temperature from 5 to 10degree F degrees compared to the surrounding environment, safe and reliable, the heater works also under gravel. Thanks to the innovative PTC film, an exclusive Hydor technology, Slim Heater limits itself and regulates the power according to the ambient temperature, guaranteeing protection, high resistance and avoiding the risk of overheating. Super slim, it can fit into any space and hide from view. Ready to use, it does not require settings. Available in various models in different powers. Attention: Slim …

This heater is perfect for small tropical fish living in glass or acrylic desktop aquariums that are between 1 and 10 gallons. No need to worry about complicated installation - this little guy is fully submersible and comes with suction cups that allow for vertical or horizontal placement on the bottom or side wall of your aquarium. And don't let its size fool you - with 5 watts of power, this heater efficiently warms up your aquarium water.

Slim Heater by Hydor is a compact, fully submersible heater, suitable for small aquariums, tanks or glass bowls, up to maximum 10 US Gal. Designed to increase the temperature from 5 to 10degree F degrees compared to the surrounding environment, safe and reliable, the heater works also under gravel. Thanks to the innovative PTC film, an exclusive Hydor technology, Slim Heater limits itself and regulates the power according to the ambient temperature, guaranteeing protection, high resistance and avoiding the risk of overheating. Super slim, it can fit into any space and hide from view. Ready to use, it does not require settings. Available in various models in different powers. Attention: Slim …

Be the fish god(ess) you were always meant to be with the Aqueon Aquatic Flat Heater 7.5 Watts! Warm up your fishy friends in style with this heater, designed specifically for glass and acrylic tanks up to 3 gallons. It's super efficient and can warm water up to 6 degrees F above ambient room temperature, which basically means your fishies will be living their best lives. Plus, it's completely submersible for easy placement, and comes with suction cup mounts for the bottom or side wall of your tank. Ideal for Betta tanks (because let's face it, they deserve the best), this heater is also quick and easy to install - because who has time to fiddle around with complicated gadgets when there are …

Before you dive into the exciting world of desktop aquariums, make sure to equip yourself with the Aqueon Mini Heater 10W! This little guy packs a punch and is perfect for aquariums up to 5 gallons. Plus, it's fully submersible and shatterproof - no need to worry about any "oopsies" during installation.

Submersible Pre Set Quartz Glass Aquarium Heater safe for Freshwater and Saltwater tanks. Pre Set and Calibrated thermostat to 78 degree with no Temperature adjustment needed. LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

Submersible Pre Set Quartz Glass Aquarium Heater safe for Freshwater and Saltwater tanks. Pre Set and Calibrated thermostat to 78 degree with no Temperature adjustment needed. LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

The Digital Thermometer by OASE is a helpful tool for your aquarium. It has a high measuring accuracy and an easy to read digital display. The included adhesive easily allows you to stick this thermometer to the exterior of your aquarium for simple, 24/7 readings. Use the button on the side of the display to conveniently switch between Fahrenheit and Celsius temperature readings. Additionally it's sleek, compact design won't disrupt from the beauty of your aquarium. Battery included.

Enter the Aqueon Aquatic Flat Heater - your fishy friends' new bestie. This heater may be flat, but it sure packs a punch when it comes to keeping water warm and cozy.

JOLLY heaters are designed for small freshwater and marine tanks. Their plastic casing makes them very durable and safe. These heaters can be placed beneath the gravel, making them a good choice also for turtle or reptile tanks.

Theo is the fully submersible aquarium heater by Hydor, supplied complete with suction cups for both horizontal and vertical positioning. A knob with graduated scale allows you to adjust the thermostat to the desired temperature, maintaining it precisely. Shatterproof and with high thermal resistance, the heater is safe, designed to avoid the risk of overheating thanks to the innovative self-protection Ptc heating element that controls the temperature by limiting the power in case of abnormal operation, exclusive Hydor technology. Also ideal for turtle tanks, Theo heaters are available in various models with different power and dimensions. Cleaning tips: periodically clean the glass heating …

Submersible Pre Set Quartz Glass Aquarium Heater safe for Freshwater and Saltwater tanks. Pre Set and Calibrated thermostat to 78 degree with no Temperature adjustment needed. LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

An aquarium heater that's so easy to use, you'll feel like a pro! With its preset temperature of 78F, there's no need for any complicated adjustments. Plus, it's built to last with shatter-resistant construction. Safety is also a top priority with automatic shut-off and overheat protection. Keep an eye on things with the handy LED indicator light that turns red when actively heating. And don't worry about placement - this heater is fully submersible!

Submersible Pre Set Quartz Glass Aquarium Heater safe for Freshwater and Saltwater tanks. Pre Set and Calibrated thermostat to 78 degree with no Temperature adjustment needed. LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

The Aqueon Preset Aquarium Heater 150W is a wonder heater that is preset to 78F. It is made of shatter-resistant construction, ensuring the safety of your fish. The heater has automatic safety shut off and overheat protection, giving you peace of mind. The LED indicator light displays red when actively heating, letting you know that your heater is hard at work. The heater is fully submersible, making it versatile and perfect for any aquarium enthusiast looking for hassle-free heating.

JOLLY heaters are designed for small freshwater and marine tanks. Their plastic casing makes them very durable and safe. These heaters can be placed beneath the gravel, making them a good choice also for turtle or reptile tanks.

Submersible Quartz Adjustable Heater safe for Freshwater and Saltwater tanks. Easy to set thermostat which features LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

Theo is the fully submersible aquarium heater by Hydor, supplied complete with suction cups for both horizontal and vertical positioning. A knob with graduated scale allows you to adjust the thermostat to the desired temperature, maintaining it precisely. Shatterproof and with high thermal resistance, the heater is safe, designed to avoid the risk of overheating thanks to the innovative self-protection Ptc heating element that controls the temperature by limiting the power in case of abnormal operation, exclusive Hydor technology. Also ideal for turtle tanks, Theo heaters are available in various models with different power and dimensions. Cleaning tips: periodically clean the glass heating …

Sicce Jolly heaters are extremely durable & virtually unbreakable plastic units that can be placed beneath aquarium gravel or sand for continual heating. The preset models are precisely calibrated to 77degree F and feature thermal protection to prevent overheating once the preset temperature is achieved, or if the heater runs dry. The Jolly heater is always on when submersed, and only stops working when unplugged or removed from the water.

Submersible Quartz Adjustable Heater safe for Freshwater and Saltwater tanks. Easy to set thermostat which features LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

Submersible Quartz Adjustable Heater safe for Freshwater and Saltwater tanks. Easy to set thermostat which features LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

Submersible Quartz Adjustable Heater safe for Freshwater and Saltwater tanks. Easy to set thermostat which features LED Power Indicator Light showing operation: Red-Heating and Green-Temperature Set. All Lifegard heaters are UL Listed with Thermal Protection. Included a 6-foot cord and suction cup for easy mount. Never remove heater while it is on or the thermal protection will permanently shut the coil for safety. Plus, the heater automatically shuts off if it is not properly submersed in water, preventing overheating and damage.

When it comes to keeping your aquatic friends cozy, the Aqueon Preset Aquarium Heater 200W is the perfect solution! With no need for adjustment, this heater is preset to a comfortable 78F so your fish can feel right at home. It's built tough with shatter-resistant construction that can withstand even the most active swimmers. Plus, you can rest easy knowing it has automatic safety shut off and overheat protection in case of any mishaps. And when it's heating up, the LED indicator light will turn red to let you know it's working its magic. This heater is also fully submersible so you can place it wherever you need it in your tank.