All Tetra HT heaters have red/green indicator lights to let you know when the heater is heating(red) or on standby(green). The low voltage thermostat maintains water at 78°F without any adjustment required. Be sure purcha...

Buy Now From Amazon

Product Review

All Tetra HT heaters have red/green indicator lights to let you know when the heater is heating(red) or on standby(green). The low voltage thermostat maintains water at 78°F without any adjustment required. Be sure purchase the correct heater for your tank size. Buying a heater too small for your tank can cause under heating. It is critical to ensure your tank is equipped with a hood or glass canopy to contain the heat inside the aquarium. All Tetra HT Heaters will shut off if an electrical short is detected for your safety.

  • AQUARIUM HEATER: Submersible heater is designed to keep your aquarium at the optimum temperature.
  • AUTOMATIC THERMOSTAT: Electronic thermostat keeps water at a consistent 78 degrees.
  • INDICATOR LIGHT: The red light shows when water is heating; green indicates that the heater is on standby.
  • EASY TO USE: Just attach to an aquarium wall – the suction cup securely attaches heater to tank.
  • SIZE: Use this 100-watt heater for 10 to 30 gallon aquariums – UL Listed.

Similar Products

Marina Floating Thermometer with Suction CupMarineland Penguin Power Filter, 20 to 30-Gallon, 150 GPHTetra Whisper Easy to Use Air Pump for Aquariums (Non-UL)API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test KitPenn Plax Airline Tubing for Aquariums –Clear and Flexible Resists Kinking, 25 Feet StandardCaribSea Eco-Complete 20-Pound Planted Aquarium, BlackWhisper In-Tank Filter 40i with BioScrubber for 20 - 40 gallon aquariums (25818)Marineland Penguin 200, Power Filter, 30 to 50-Gallon, 200 GPHNICREW ClassicLED Aquarium Light, Fish Tank Light with Extendable Brackets, White and Blue LEDs, Size 28 to 36 Inch, 18 WattsZacro LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature (Black)