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Aquarium Heaters

163 products
Marineland Precision Submersible Heater
Starting at $22.99
heater with built-in thermal safety switch*Maintain proper aquarium water temperature with ±1°F accuracy*UL Listed heater turns off automatically to prevent heater failureEnjoy safe, reliable heater performance for stable aquarium water temperatures. Marineland Precision Submersible Heater features…
Hydor Theo Heater
Starting at $18.69
…switches itself off if the heater is not fully submersed - avoiding overheating and damage. Precise temperature knob clicks in 1°F increments, and an indicator lamp lets you know when it's on. Suction-cup clamps included. 5-1/2 ft. cord. UL-Listed. Watts Length Aquarium Size(max. temperature…
Hydor ETH In-Line Heaters
Starting at $56.99
…insulated and double sealed The first compact aquarium heater that operates externally, saving interior aquarium space. Installs vertically in the return line of a canister filter or sump, allowing better heat distribution as water returns to the aquarium. Built-in clamps for easy plumbing, and…
Aqueon Preset Heaters
Starting at $9.99
*Preset heaters require no adjusting for your aquarium *Constructed of shatter-resistant quartz glass *LED light turns on when aquarium water is being heated Keep your aquarium at the appropriate temperature for your tropical fish with Aqueon Preset Heaters. Preset heaters require no adjusting…
JBJ True Temp Digital Heater Controller
Starting at $79.99
aquarium heaters up to 1,000W max * Monitor and regulate aquarium heater operation with ease * Large constant display of current aquarium water temperature Maintain accurate aquarium water temperature with this budget-friendly digital controller. The JBJ True Temp Digital Heater
Aqueon LED Aquarium Lamps - SIZE 24
Starting at $22.99
…filtration to ensure crystal clear water, and heaters are accurate within +/-1°F. These are just a few of the examples of what makes Aqueon different.These are also the little things that will make your life easier when keeping an aquarium and in turn keep you wet friends happy and healthy.…
Cobalt Aquatics Accu-Therm Heater
Starting at $22.54
*Fully submersible quartz heater for reliable aquarium performance*Set desired aquarium temperature & on/off indicator light confirms operation*Durable aquarium heater boasts superior heat and shock resistanceFully submersible, European-made heater boasts premium features, simple operation and…
Eheim Jager Thermostat Heater
Starting at $4.99
…Electronic aquarium heater with advanced new feature * Fully submersible aquarium heater with dry-run protection * Recalibrate heater to ensure ideal aquarium water temperatures High-tech electronic aquarium heater you can recalibrate for ultimate temperature control. Jager Thermostat Heater
Cobalt Aquatics Mini-Therm Heater
Starting at $11.85
…fully submersible heater for small aquariums up to 5 gals*Compact, fully submersible heater for small aquariums up to 4.8 gals*Shatterproof aquarium heater delivers constant heat for easy use*Great heater for freshwater or saltwater pico aquarium setupsRugged, shatterproof heater delivers constant…
JBJ Rimless Desktop Aquarium
Starting at $159.99
…relax and enjoy the new contemporary addition to your décor.Removable Bio FilterJBJ Rimless Desktop Aquariums come standard with a removable 3-stage filter with a designated heater column and return pump column. This filter can be placed to your desired location in your Rimless Desktop Aquarium.
Tetra HT Submersible Aquarium Heaters
Starting at $9.99
heaters for aquariums up to 40 gallons*Electronic thermostat automatically maintains aquarium temperature*Indicator light allows easy visual confirmation of heater operationEasy-to-use submersible heaters automatically maintain aquarium water temperature at 78°F (±2°). Tetra HT Submersible Aquarium
Fluval E Series Heaters
Starting at $41.99
…electronic heater for fresh and saltwater aquariums * Advanced aquarium heater detects abnormal or non-optimal conditions * Heater microprocessor monitors and displays aquarium water temperature The most technologically advanced submersible aquarium heaters available today. Fluval E Series heaters
JBJ Cubey Nano All-In-One Aquarium - 20 Gallon, Black
Starting at $308
…are essential for all small aquariums. Fortunately, their compact size makes these routine tasks simple.Be Prepared to Purchase Additional EquipmentWhile filtration and lighting come standard, certain aquarium systems may not include additional equipment. Aquarium heaters are commonly excluded in…
Aqueon® 10W Submersible Mini Aquarium Heater
Starting at $9.99
…10W Submersible Mini Aquarium Heater. Provides warmth for your tropical fish, this mini heater is designed with shatterproof housing for maximum durability and features thermal safety auto shut-off. Compact and completely submersible mini heater is perfect for desktop aquariums up to five gallons. …
Fluval M Heater
Starting at $13.99
heater mirrors aquarium surroundings * Maintain proper water temperature AND aquarium aesthetics Ultra modern design meets reliable European aquarium heater technology. The Fluval M Series Heater is a welcomed departure from bulky unsightly heaters. This beautifully-designed aquarium