![HITOP Adjustable Aquarium Heater with Protective Cover, 50W 100W 120W Fish Tank Heater for 10/20/30 Gallon Fish Tank or Turtle Tank : Amazon.ca: Pet Supplies HITOP Adjustable Aquarium Heater with Protective Cover, 50W 100W 120W Fish Tank Heater for 10/20/30 Gallon Fish Tank or Turtle Tank : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/71sPDfLqcDL._AC_UF1000,1000_QL80_.jpg)
HITOP Adjustable Aquarium Heater with Protective Cover, 50W 100W 120W Fish Tank Heater for 10/20/30 Gallon Fish Tank or Turtle Tank : Amazon.ca: Pet Supplies
![INKBIRD Titanium Aquarium Heater for Freshwater or Saltwater Tanks 300W Submersible Fish Tank Heater with Smart IC Chip andWaterproof LCD Screen Adjustable Heating Temperature 68℉-94℉(20°C-34°C) : Amazon.ca: Pet Supplies INKBIRD Titanium Aquarium Heater for Freshwater or Saltwater Tanks 300W Submersible Fish Tank Heater with Smart IC Chip andWaterproof LCD Screen Adjustable Heating Temperature 68℉-94℉(20°C-34°C) : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/61NpYD54F2L.jpg)
INKBIRD Titanium Aquarium Heater for Freshwater or Saltwater Tanks 300W Submersible Fish Tank Heater with Smart IC Chip andWaterproof LCD Screen Adjustable Heating Temperature 68℉-94℉(20°C-34°C) : Amazon.ca: Pet Supplies
![Abustle pig Mini Aquarium Heater,25W/50W Small Submersible Fish Tank Betta Heater Thermostat with Free Thermometer Sticker, Under 6 Gallon Fish Tanks (25 W) : Amazon.ca: Pet Supplies Abustle pig Mini Aquarium Heater,25W/50W Small Submersible Fish Tank Betta Heater Thermostat with Free Thermometer Sticker, Under 6 Gallon Fish Tanks (25 W) : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/61Wv7BB4B8L.jpg)
Abustle pig Mini Aquarium Heater,25W/50W Small Submersible Fish Tank Betta Heater Thermostat with Free Thermometer Sticker, Under 6 Gallon Fish Tanks (25 W) : Amazon.ca: Pet Supplies
![Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 - 50 Gallon Fish Tank (50W for 5~20gallon) : Amazon.ca: Pet Supplies Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 - 50 Gallon Fish Tank (50W for 5~20gallon) : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/61v7uOq-9KL.jpg)
Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 - 50 Gallon Fish Tank (50W for 5~20gallon) : Amazon.ca: Pet Supplies
![HiTauing Aquarium Heater, 100W Fish Tank Heater with LED Digital Display & 5 Safety Protection, Submersible Aquarium Heater with 2 Suction Cup and 5.9Ft Cord for 10-20 Gallon Fish Tank. : Amazon.ca: Pet Supplies HiTauing Aquarium Heater, 100W Fish Tank Heater with LED Digital Display & 5 Safety Protection, Submersible Aquarium Heater with 2 Suction Cup and 5.9Ft Cord for 10-20 Gallon Fish Tank. : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/71+Ka-Cy77L.jpg)
HiTauing Aquarium Heater, 100W Fish Tank Heater with LED Digital Display & 5 Safety Protection, Submersible Aquarium Heater with 2 Suction Cup and 5.9Ft Cord for 10-20 Gallon Fish Tank. : Amazon.ca: Pet Supplies
![✓ Best Aquarium Heater For 20 Gallon Tank: Aquarium Heater For 20 Gallon Tank | [Tested & Reviewed] - YouTube ✓ Best Aquarium Heater For 20 Gallon Tank: Aquarium Heater For 20 Gallon Tank | [Tested & Reviewed] - YouTube](https://i.ytimg.com/vi/83JID7465RI/maxresdefault.jpg)
✓ Best Aquarium Heater For 20 Gallon Tank: Aquarium Heater For 20 Gallon Tank | [Tested & Reviewed] - YouTube
![Amazon.com: Submersible Aquarium Heater 300w 100w 200w, Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers 100w : Pet Supplies Amazon.com: Submersible Aquarium Heater 300w 100w 200w, Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers 100w : Pet Supplies](https://m.media-amazon.com/images/I/514vqBClgZL.jpg)
Amazon.com: Submersible Aquarium Heater 300w 100w 200w, Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers 100w : Pet Supplies
![Tetra Aquarium ColorFusion Kit, 20 Gallon, with LED Hood, Whisper Filter, Heater and Décor : Amazon.ca: Pet Supplies Tetra Aquarium ColorFusion Kit, 20 Gallon, with LED Hood, Whisper Filter, Heater and Décor : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/71v9AY0mOxL.jpg)
Tetra Aquarium ColorFusion Kit, 20 Gallon, with LED Hood, Whisper Filter, Heater and Décor : Amazon.ca: Pet Supplies
![Orlushy 500W Submersible Aquarium Heater, Fish Tank Heater with Adjustable Temperature and 2 Suction Cups for 10-20 Gallon Tank 6ft Power Cord : Amazon.ca: Pet Supplies Orlushy 500W Submersible Aquarium Heater, Fish Tank Heater with Adjustable Temperature and 2 Suction Cups for 10-20 Gallon Tank 6ft Power Cord : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/81HcPb49LML.jpg)
Orlushy 500W Submersible Aquarium Heater, Fish Tank Heater with Adjustable Temperature and 2 Suction Cups for 10-20 Gallon Tank 6ft Power Cord : Amazon.ca: Pet Supplies
![What do you recommend for a heater for a 20 gal? I got the aquarium kit from PetSmart but have read that the heaters suck/ are unreliable… and would rather not come What do you recommend for a heater for a 20 gal? I got the aquarium kit from PetSmart but have read that the heaters suck/ are unreliable… and would rather not come](https://preview.redd.it/asu5ezlqu2j81.jpg?auto=webp&s=b54144a2f414f6b03cc252f5ea55debe2d043997)