| 1 | ViaAqua 200-Watt Quartz Glass Submersible Heate… By ViaAqua 231 Reviews | 9.6 Score | Average price… $19.98 |
| 2 | Mini-Therm Heater, 5 watt By Cobalt Aquatics 133 Reviews | 9.6 Score | Average price… $14.78 |
| 3 | Marineland ML90654 Precision Heater for Aquariu… By MarineLand 119 Reviews | 9.0 Score | Average price… $27.40 |
| 4 | Zacro AH032 Submersible Aquarium Heater of 50W By Zacro 69 Reviews | 9.0 Score | Average price… $9.99 |
| 5 | EHEIM Jager Aquarium Thermostat Heater 100W By Eheim 127 Reviews | 8.6 Score | Average price… $30.28 |
| 6 | Tetra 26445 Aquatic Reptile Heater, 100 Watt By Tetra 347 Reviews | 8.4 Score | Average price… $16.99 |
| 7 | Hydor 25W Submersible Glass Aquarium Heater – O… By Hydor 1025 Reviews | 8.0 Score | Average price… $15.29 |
| 8 | Marina Betta Submersible Heater for Aquarium By Marina 176 Reviews | 7.7 Score | Average price… $9.99 |
| 9 | SunSun 500-watt Submersible Heater By Sun 58 Reviews | 7.4 Score | Average price… $14.99 |
| 10 | Cascade Heat 10″ Aquarium Heater 150 Watt By Penn-Plax 191 Reviews | 7.1 Score | Average price… $16.69 |