Hygger submersible aquarium heater with adjustment knob can be used for small betta coral tanks, suitable for both saltwater and freshwater, it is designed especially for 15-80 gallon fish tanks.

Key Features:

• Set Included:
  • 1x Aquarium Heater,
  • 1x Sucker,
  • 1x User Manual
• ETL Certification Aquarium Heater with double-protected 30-gallon fish tank.
• Double-protected and has passed UL certification
• A safety fuse is installed inside
• If the heater is out of the water for more than 3 minutes the fuse will be automatically disconnected
• Set temperature from 68-93 Fahrenheit to maintain constant and stable temperatures
• The exactness is within 2 degrees Fahrenheit
• Fully submersible water heater
• Includes two suction cups for mounting horizontally or vertically
• There is a built-in thermometer in the aquarium heater to detect the water temperature
• No separate thermometer is needed
• This 998 aquarium heater tube is made from heat-resistant glass, which is up to 2mm Explosion-proof glass
• Can be used in fresh and saltwater aquariums
• Service life can be 3 years or more
• Use white alundum sand as the heat-conducting media
• Must be fully submerged in water when working
• Place near the water intake or the way where water flows
• The heater will automatically shut off once the water temperature is over 93 Degrees Fahrenheit
• Rotate the knob on the temp controller to set it to your desired temperature
• Colour: Black
• Material: Glass, Synthetic Rubber
• Made in: China
• Dimensions (HxWxD): 35.5x8.5x5 cm
• Weight: 0.33 kg
• Manufacturer's Warranty: 1-year Warranty
• Plug: AU plug
• Useful Tips:
  1. For a better experience and to heat the aquarium safely, please carefully read and follow the user manual.
  2. Keep the aquarium heater fully submerged in water.
  3. Stick the heater horizontally or vertically onto the tank side near the water intake or on the way of water flow.
  4. Don't bury the heating rod in sand or stones.
  5. Please keep the temp controller away from water.
  6. Please don't connect the power before the heater is well installed.
  7. Wait for the heater rod to cool down before you move the heater or change the water.