![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://m.media-amazon.com/images/I/71iAOATfWIL.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
![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)
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
![Fish Starter Kit - Frisco Betta Aquarium, Tetra Betta Food, GloFish Gravel, Hydor Heater, Penn-Plax Plants - Chewy.com Fish Starter Kit - Frisco Betta Aquarium, Tetra Betta Food, GloFish Gravel, Hydor Heater, Penn-Plax Plants - Chewy.com](https://image.chewy.com/is/image/catalog/659958_MAIN._AC_SL600_V1666270984_.jpg)