Free Shipping!
Shop More, Earn More. Use Code MAYGC25, MAYGC40, or MAYGC60 SEE DETAILS ›

Narrow Your Results:

Categories
Special
Brand
Aquarium Size (gallons)
Sale Items

Aquarium Heaters

161 products
Marineland Precision Submersible Heater
(5743)
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
(4583)
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…
Eheim Jager Thermostat Heater
(4578)
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
Hydor ETH In-Line Heaters
(4582)
Starting at $54.99
…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 Deluxe LED Full Hood LED Aquarium Light - 36"
(5351)
Starting at $63.99
…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.…
Aqueon Preset Heaters
(5746)
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
(4587)
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
Cobalt Aquatics Mini-Therm Heater
(4574)
Starting at $13.94
…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…
Cobalt Aquatics Accu-Therm Heater
(4573)
Starting at $25.96
*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…
Fluval M-90 Reef Aquarium Set
(6008)
Starting at $799.99
…reef aquarium that complements home interiors*Built-in drain valve with drain hose eases aquarium water changesInclusive 36-gallon reef aquarium kit boasts easy set up and maintenance to enhance your reef keeping experience. Fluval M-90 Reef Aquarium Set comes with a glass aquarium with frosted…
Finnex Digital Heater Temperature Controller +Memory
(5903)
Starting at $44.99
…for aquarium heaters up to 800W*Maintains aquarium heater temperature within ±2°F of set value*High/Low temp alert PLUS dual relay technology for safe heater operationAdvanced controller technology maintains aquarium heater operation within ±2°F of set value. Finnex Digital Heater Temperature…
JBJ True Temp Titanium Heating System Kit
(4586)
Starting at $101.72
* High-tech aquarium heating system at a competitive kit price * Complete with titanium aquarium heater and digital controller * Simplify precision aquarium water temperature management Can you afford not to take aquarium water temperature management seriously? True Temp…
Fluval E Series Heaters
(5741)
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
AquaFX RO Standard Float and Hydraulic Automatic Shut Off Kit
(5028)
Starting at $19.99
…works great. Submersible pump strong enough to push water from the container to the aquarium(s). Flexible tubing sized to the pump output and long enough to go from container to aquarium(s). 200-watt aquarium heater and floating thermometer.First, choose a less popular faucet near a drain (utility…
Tetra HT Submersible Aquarium Heaters
(5740)
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
DFS24