![Amazon.com: PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉) : Pet Supplies Amazon.com: PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉) : Pet Supplies](https://m.media-amazon.com/images/I/61PrJ9gAPSS._AC_UF1000,1000_QL80_.jpg)
Amazon.com: PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉) : Pet Supplies
![HT200-Fish Tank Heater Fully Submersible,Shatter-resistant Construction,Plastic Adjustable Electric Heater - Water-Rebirth HT200-Fish Tank Heater Fully Submersible,Shatter-resistant Construction,Plastic Adjustable Electric Heater - Water-Rebirth](https://water-rebirth.com/wp-content/uploads/2020/08/%E5%8A%A0%E7%83%AD%E6%A3%92001-O.jpg)
HT200-Fish Tank Heater Fully Submersible,Shatter-resistant Construction,Plastic Adjustable Electric Heater - Water-Rebirth
![Amazon.com: HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (300W) : Pet Supplies Amazon.com: HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (300W) : Pet Supplies](https://m.media-amazon.com/images/I/61N7b74UkUS._AC_UF1000,1000_QL80_.jpg)
Amazon.com: HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (300W) : Pet Supplies
![Amazon.com: AQQA Aquarium Heater 100W Submersible Fish Tank Heater 10-30 Gallon Aquarium Betta Heater Small Aquarium with Suction Cups Thermostat Heater for Freshwater & Saltwater(100W) : Pet Supplies Amazon.com: AQQA Aquarium Heater 100W Submersible Fish Tank Heater 10-30 Gallon Aquarium Betta Heater Small Aquarium with Suction Cups Thermostat Heater for Freshwater & Saltwater(100W) : Pet Supplies](https://images-na.ssl-images-amazon.com/images/I/71iAOATfWIL._AC_UL210_SR210,210_.jpg)
Amazon.com: AQQA Aquarium Heater 100W Submersible Fish Tank Heater 10-30 Gallon Aquarium Betta Heater Small Aquarium with Suction Cups Thermostat Heater for Freshwater & Saltwater(100W) : Pet Supplies
![Amazon.com: BOEESPAT Aquarium Heater 300W Fish Tank Heater with Anti Scald Protector and Aquarium Thermometer, Fully Submersible Fish Heater for Marine Saltwater and Freshwater (40 to 60 gallons) : Pet Supplies Amazon.com: BOEESPAT Aquarium Heater 300W Fish Tank Heater with Anti Scald Protector and Aquarium Thermometer, Fully Submersible Fish Heater for Marine Saltwater and Freshwater (40 to 60 gallons) : Pet Supplies](https://m.media-amazon.com/images/I/71aVfHdMjiL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: BOEESPAT Aquarium Heater 300W Fish Tank Heater with Anti Scald Protector and Aquarium Thermometer, Fully Submersible Fish Heater for Marine Saltwater and Freshwater (40 to 60 gallons) : Pet Supplies
![Amazon.com: SunGrow Halfmoon Betta Heater, 10 Watts, for Small Tanks, Fully Submersible Aquarium Heater, Automatically Reaches Preset Temperature, Energy-Efficient Heating Module, Suction Cups Included : Pet Supplies Amazon.com: SunGrow Halfmoon Betta Heater, 10 Watts, for Small Tanks, Fully Submersible Aquarium Heater, Automatically Reaches Preset Temperature, Energy-Efficient Heating Module, Suction Cups Included : Pet Supplies](https://m.media-amazon.com/images/I/71jzQ5JCIjL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: SunGrow Halfmoon Betta Heater, 10 Watts, for Small Tanks, Fully Submersible Aquarium Heater, Automatically Reaches Preset Temperature, Energy-Efficient Heating Module, Suction Cups Included : Pet Supplies
![Amazon.com: Kinbo Aquarium Heater 300 Watt Submersible Fish Tank Heater Adjustable Temperature with Diving Thermometer and Protective Case Suction Cup : Pet Supplies Amazon.com: Kinbo Aquarium Heater 300 Watt Submersible Fish Tank Heater Adjustable Temperature with Diving Thermometer and Protective Case Suction Cup : Pet Supplies](https://m.media-amazon.com/images/I/61o7IEqjUJL.jpg)
Amazon.com: Kinbo Aquarium Heater 300 Watt Submersible Fish Tank Heater Adjustable Temperature with Diving Thermometer and Protective Case Suction Cup : Pet Supplies
![Amazon.com: SZELAM Aquarium Heater 200W 300W 500W, Submersible Fish Tank Heaters with LED Display Controller, Over Heating Protection and Anti-Dry Burning, Fish Heater Suitable for Freshwater and Saltwater : Pet Supplies Amazon.com: SZELAM Aquarium Heater 200W 300W 500W, Submersible Fish Tank Heaters with LED Display Controller, Over Heating Protection and Anti-Dry Burning, Fish Heater Suitable for Freshwater and Saltwater : Pet Supplies](https://m.media-amazon.com/images/I/813qGgAp5bL.jpg)
Amazon.com: SZELAM Aquarium Heater 200W 300W 500W, Submersible Fish Tank Heaters with LED Display Controller, Over Heating Protection and Anti-Dry Burning, Fish Heater Suitable for Freshwater and Saltwater : Pet Supplies
![VIVOSUN Submersible Aquarium Heater 300w Titanium Fish Tank Heaters With Intelligent Led Temperature Display And External Temperature Controller & Reviews | Wayfair VIVOSUN Submersible Aquarium Heater 300w Titanium Fish Tank Heaters With Intelligent Led Temperature Display And External Temperature Controller & Reviews | Wayfair](https://assets.wfcdn.com/im/70538469/compr-r85/1487/148791368/submersible-aquarium-heater-300w-titanium-fish-tank-heaters-with-intelligent-led-temperature-display-and-external-temperature-controller.jpg)
VIVOSUN Submersible Aquarium Heater 300w Titanium Fish Tank Heaters With Intelligent Led Temperature Display And External Temperature Controller & Reviews | Wayfair
![Amazon.com: hygger Fully Submersible 500 W Aquarium Heater with External Temperature Display Controller Upgraded Double Quartz Tubes Fish Tank Heater for 65-120 Gallon, Suitable for Marine and Freshwater : Pet Supplies Amazon.com: hygger Fully Submersible 500 W Aquarium Heater with External Temperature Display Controller Upgraded Double Quartz Tubes Fish Tank Heater for 65-120 Gallon, Suitable for Marine and Freshwater : Pet Supplies](https://m.media-amazon.com/images/I/71poUKffBTL.jpg)
Amazon.com: hygger Fully Submersible 500 W Aquarium Heater with External Temperature Display Controller Upgraded Double Quartz Tubes Fish Tank Heater for 65-120 Gallon, Suitable for Marine and Freshwater : Pet Supplies
![Bnzaq Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W50W100W150W200W300W Bnzaq Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W50W100W150W200W300W](https://c.shld.net/rpx/i/s/pi/mp/9150/prod_11406854802?src=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F71uJ6S-xKdL.jpg&d=e10436d99906b679060b692c8cb9799efa523f91)
Bnzaq Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W50W100W150W200W300W
![Can this heater be a little outside of water? Glass is fully submerged. Lost the suction cups so the top floats out a little. Any ideas? : r/ Aquariums Can this heater be a little outside of water? Glass is fully submerged. Lost the suction cups so the top floats out a little. Any ideas? : r/ Aquariums](https://i.redd.it/d2ifpiwz28dz.jpg)
Can this heater be a little outside of water? Glass is fully submerged. Lost the suction cups so the top floats out a little. Any ideas? : r/ Aquariums
![50W-200W Submersible Aquarium Fish Tank Heater Rod Heating Adjustable Temperatat – ASA College: Florida 50W-200W Submersible Aquarium Fish Tank Heater Rod Heating Adjustable Temperatat – ASA College: Florida](https://i.ebayimg.com/images/g/KQwAAOSw9yFjYNd-/s-l1600.jpg)