Best Aquarium Heater For 5 Gallon Tank

HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater

Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt

NICREW Aquarium Heater 50W, Temperature Adjustable Fish Tank Heater with Controller for 5-10 Gallon, Overheat Protection

Fluval M50 Submersible Heater, 50-Watt Heater for Aquariums up to 15 Gal., A781

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)

Abhirsh Aquarium Heater 50 Watt - Reliable Fish Tank and Immersion Water Heater, Adjustable Temperature Submersible Thermostat Heater for 5-10 Gallon

Eheim Jager TruTemp Submersible Heater - 50 W

hygger Small Submersible Aquarium Heater 50W Mini Betta Fish Tank Heater with Thermostat for 5-10 Gallon Saltwater Freshwater

Aqueon Mini Heater - 10 W

Hagen Fluval Marina Submersible Heater for Aquarium, 50W