![Amazon.com: AQQA Aquarium Heater 1000W for 150-300 Gallon Submersible Fish Tank Heater for Aquarium Betta Fish Heater Aquarium Thermostat Heater Hydroponic Freshwater & Saltwater (1000W, 150-300Gal) : Pet Supplies Amazon.com: AQQA Aquarium Heater 1000W for 150-300 Gallon Submersible Fish Tank Heater for Aquarium Betta Fish Heater Aquarium Thermostat Heater Hydroponic Freshwater & Saltwater (1000W, 150-300Gal) : Pet Supplies](https://m.media-amazon.com/images/I/71sUqQUxfZL.jpg)
Amazon.com: AQQA Aquarium Heater 1000W for 150-300 Gallon Submersible Fish Tank Heater for Aquarium Betta Fish Heater Aquarium Thermostat Heater Hydroponic Freshwater & Saltwater (1000W, 150-300Gal) : Pet Supplies
![Amazon.com: ZHGSERVU 100W/300W/500W Aquarium Heater Submersible 10-90 Gallon 300 Watt Fish Tank Heater with Durable Quartz Glass Protective Sleeve Auto Thermostat for Fresh-Water & Salt-Water : Pet Supplies Amazon.com: ZHGSERVU 100W/300W/500W Aquarium Heater Submersible 10-90 Gallon 300 Watt Fish Tank Heater with Durable Quartz Glass Protective Sleeve Auto Thermostat for Fresh-Water & Salt-Water : Pet Supplies](https://m.media-amazon.com/images/I/71sorJp7mFL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: ZHGSERVU 100W/300W/500W Aquarium Heater Submersible 10-90 Gallon 300 Watt Fish Tank Heater with Durable Quartz Glass Protective Sleeve Auto Thermostat for Fresh-Water & Salt-Water : Pet Supplies
![Simple Deluxe 300 Watts Aquarium Heater Submersible Fish Tank Heater with LED Temperature Display and External Temperature Controller - Walmart.com Simple Deluxe 300 Watts Aquarium Heater Submersible Fish Tank Heater with LED Temperature Display and External Temperature Controller - Walmart.com](https://i5.walmartimages.com/asr/d2d04fab-b87a-4313-b61e-048633d5c10f.04584111c85ca5c160cc18afd01d26c7.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Simple Deluxe 300 Watts Aquarium Heater Submersible Fish Tank Heater with LED Temperature Display and External Temperature Controller - Walmart.com
![Amazon.com: hygger 300W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 30-60 Gallon Tank : Pet Supplies Amazon.com: hygger 300W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 30-60 Gallon Tank : Pet Supplies](https://m.media-amazon.com/images/I/614dd-vTlRL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: hygger 300W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 30-60 Gallon Tank : Pet Supplies
![Amazon.com: INKBIRDPLUS 300W Submersible Aquarium Heater Titanium Fish Tank Auto Thermostat with LED Digital Temperature Readout and External Temperature Controller for Salt Water and Fresh Water : Pet Supplies Amazon.com: INKBIRDPLUS 300W Submersible Aquarium Heater Titanium Fish Tank Auto Thermostat with LED Digital Temperature Readout and External Temperature Controller for Salt Water and Fresh Water : Pet Supplies](https://m.media-amazon.com/images/I/71Mak2-CWiL.jpg)
Amazon.com: INKBIRDPLUS 300W Submersible Aquarium Heater Titanium Fish Tank Auto Thermostat with LED Digital Temperature Readout and External Temperature Controller for Salt Water and Fresh Water : Pet Supplies
![Amazon.com: MantaMaze 500W/800W/1000W Titanium Aquarium Heater - Submersible Fish Tank Heater for 50-300 Gallon with Over Heating Protection and Anti-Dry Burning - Suitable Freshwater and Saltwater : Pet Supplies Amazon.com: MantaMaze 500W/800W/1000W Titanium Aquarium Heater - Submersible Fish Tank Heater for 50-300 Gallon with Over Heating Protection and Anti-Dry Burning - Suitable Freshwater and Saltwater : Pet Supplies](https://m.media-amazon.com/images/I/81XrQBDWciL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: MantaMaze 500W/800W/1000W Titanium Aquarium Heater - Submersible Fish Tank Heater for 50-300 Gallon with Over Heating Protection and Anti-Dry Burning - Suitable Freshwater and Saltwater : Pet Supplies
![Amazon.com: FREESEA 300 Watt Aquarium Fish Tank Heater with Aquarium Submersible Thermometer : Pet Supplies Amazon.com: FREESEA 300 Watt Aquarium Fish Tank Heater with Aquarium Submersible Thermometer : Pet Supplies](https://m.media-amazon.com/images/I/71UpSTTTLKL.jpg)
Amazon.com: FREESEA 300 Watt Aquarium Fish Tank Heater with Aquarium Submersible Thermometer : Pet Supplies
![Amazon.com: AQQA Aquarium Heater 300W for 80-95 Gallon Fish Tank Heater Aquarium Submersible Heater Betta Fish Heater Aquarium Thermostat Heater for Freshwater Saltwater Fish Tanks (300W for 80-95 Gal) : Pet Supplies Amazon.com: AQQA Aquarium Heater 300W for 80-95 Gallon Fish Tank Heater Aquarium Submersible Heater Betta Fish Heater Aquarium Thermostat Heater for Freshwater Saltwater Fish Tanks (300W for 80-95 Gal) : Pet Supplies](https://m.media-amazon.com/images/I/71yWByT9G8S.jpg)
Amazon.com: AQQA Aquarium Heater 300W for 80-95 Gallon Fish Tank Heater Aquarium Submersible Heater Betta Fish Heater Aquarium Thermostat Heater for Freshwater Saltwater Fish Tanks (300W for 80-95 Gal) : Pet Supplies
![Amazon.com: Submersible Aquarium Heater, 300 Watt Adjustable Aquarium Heater,Adjustable Fish Tahk Heater,Tank Heater for 55 Gallon,with 2 Suction Cups,Free Fish Tank Temperature Sticker(40-60 Gallon) : Pet Supplies Amazon.com: Submersible Aquarium Heater, 300 Watt Adjustable Aquarium Heater,Adjustable Fish Tahk Heater,Tank Heater for 55 Gallon,with 2 Suction Cups,Free Fish Tank Temperature Sticker(40-60 Gallon) : Pet Supplies](https://m.media-amazon.com/images/I/71f1-PzNXAL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Submersible Aquarium Heater, 300 Watt Adjustable Aquarium Heater,Adjustable Fish Tahk Heater,Tank Heater for 55 Gallon,with 2 Suction Cups,Free Fish Tank Temperature Sticker(40-60 Gallon) : Pet Supplies
![Simple Deluxe 300 Watts Aquarium Heater Submersible Fish Tank Heater with LED Temperature Display and External Temperature Controller - Walmart.com Simple Deluxe 300 Watts Aquarium Heater Submersible Fish Tank Heater with LED Temperature Display and External Temperature Controller - Walmart.com](https://i5.walmartimages.com/asr/39e2e0c4-06d8-4073-b715-e478a4137e93.3a94d474ad53d3b992561b9d2d617aa8.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Simple Deluxe 300 Watts Aquarium Heater Submersible Fish Tank Heater with LED Temperature Display and External Temperature Controller - Walmart.com
![Amazon.com: MantaMaze 500W/800W/1000W Titanium Aquarium Heater - Submersible Fish Tank Heater for 50-300 Gallon with Over Heating Protection and Anti-Dry Burning - Suitable Freshwater and Saltwater : Pet Supplies Amazon.com: MantaMaze 500W/800W/1000W Titanium Aquarium Heater - Submersible Fish Tank Heater for 50-300 Gallon with Over Heating Protection and Anti-Dry Burning - Suitable Freshwater and Saltwater : Pet Supplies](https://m.media-amazon.com/images/I/71kM13wdc-L._AC_UF350,350_QL80_.jpg)
Amazon.com: MantaMaze 500W/800W/1000W Titanium Aquarium Heater - Submersible Fish Tank Heater for 50-300 Gallon with Over Heating Protection and Anti-Dry Burning - Suitable Freshwater and Saltwater : Pet Supplies
![Amazon.com: hygger 300W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 30-60 Gallon Tank : Pet Supplies Amazon.com: hygger 300W Aquarium Heater with External Digital Temperature Controller Reef Saltwater Fish Tank Heater for 30-60 Gallon Tank : Pet Supplies](https://m.media-amazon.com/images/S/aplus-media/sc/69f001c3-80f6-48d9-8035-de037910519a.__CR0,0,300,600_PT0_SX150_V1___.jpg)