![YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W with External Temperature Controller, LED Display, Used for 5/10/20/40/60 Gallons (25 Watts) : Amazon.ca: Pet Supplies YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W with External Temperature Controller, LED Display, Used for 5/10/20/40/60 Gallons (25 Watts) : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/618+BqHf5yL._AC_UF1000,1000_QL80_.jpg)
YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W with External Temperature Controller, LED Display, Used for 5/10/20/40/60 Gallons (25 Watts) : Amazon.ca: Pet Supplies
![âś“ Best Aquarium Heater For 20 Gallon Tank: Aquarium Heater For 20 Gallon Tank | [Tested & Reviewed] - YouTube âś“ Best Aquarium Heater For 20 Gallon Tank: Aquarium Heater For 20 Gallon Tank | [Tested & Reviewed] - YouTube](https://i.ytimg.com/vi/83JID7465RI/maxresdefault.jpg)
âś“ Best Aquarium Heater For 20 Gallon Tank: Aquarium Heater For 20 Gallon Tank | [Tested & Reviewed] - YouTube
![HiTauing 200W/300W/500W Submersible Aquarium Heater for 20-130 Gallon - Upgraded Double Quartz Tubes Fish Tank Heater with HD Temperature Digital Display - Suitable for Freshwater and Saltwater : Amazon.ca: Pet Supplies HiTauing 200W/300W/500W Submersible Aquarium Heater for 20-130 Gallon - Upgraded Double Quartz Tubes Fish Tank Heater with HD Temperature Digital Display - Suitable for Freshwater and Saltwater : Amazon.ca: Pet Supplies](https://m.media-amazon.com/images/I/71t+Ur+D2mL._AC_UF1000,1000_QL80_.jpg)
HiTauing 200W/300W/500W Submersible Aquarium Heater for 20-130 Gallon - Upgraded Double Quartz Tubes Fish Tank Heater with HD Temperature Digital Display - Suitable for Freshwater and Saltwater : 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 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/71WE-Ry7cLL.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._AC_UF894,1000_QL80_.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
![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?width=640&crop=smart&auto=webp&s=757cdecec80c5961120d157023fde092fa98ad2c)