10 bestAquarium Heater For 5 Gallon Tankof January 2026

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

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

Eheim Jager TruTemp Submersible Heater - 50 W

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

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

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)

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

EHEIM 3611090 Jager Aquarium Thermostat Heater 25W

hygger Marine 50W Titanium Aquarium Heater for Salt Water and Fresh Water, Digital Submersible Heater with External IC Thermostat Controller and Thermometer, Fish Tank Heater for Fish Tank 5-10 Gallon