Aqueon Preset Aquarium Heater

Steady 78°F Water Heating for Tropical Aquarium Fish

Product Description

The Aqueon Preset Aquarium Heater keeps aquarium water at 78°F, a temperature suitable for most tropical fish, with an accuracy of plus or minus 1°F. No adjustment is needed. The fully submersible heater is made of shatter-resistant quartz glass and includes an automatic safety shut-off to prevent overheating. A red LED light shows when heating is active, and suction cups allow vertical or horizontal placement.

Benefits

• Preset Temperature Control: Calibrated at 78°F, the heater requires no adjustment and suitable for the needs of most tropical fish.
• Accurate Temperature Setting: The preset temperature is precise within ±1°F, aiding in maintaining a consistent water temperature.
• Shatter-Resistant Build: Made of shatter-resistant quartz glass, the heater offers reliable, long-lasting use inside the home aquarium.
• Automatic Safety Shut-Off: A built-in safety shut-off feature turns the heater off automatically to help prevent the unit from overheating.
• LED Heating Indicator: A red LED light turns on while the heater is actively warming the aquarium water.
• Flexible Placement Options: Included suction cups allow the heater to be mounted vertically or horizontally inside the aquarium.
• Fully Submersible Design: The heater is fully submersible and can be placed completely below the water surface inside the aquarium.
• Multiple Wattage Sizes: Available in 50, 100, 150, and 200 watt models to suit aquariums from 5 to 75 gallons.

Variants

• 50 Watt (5 to 20 Gallons)
• 100 Watt (20 to 30 Gallons)
• 150 Watt (30 to 55 Gallons)
• 200 Watt (55 to 75 Gallons)

How to Use

Recommended-Usage Chart

Disclaimer: Product information and usage guidelines are provided by the manufacturer. Always use products as directed on the label and consult your veterinarian before use if you have any concerns regarding your pet's health.

Usage Instructions

• Read Safety Instructions: Read and understand all safety instructions and warnings before handling or installing the heater in the aquarium.
• Attach Suction Cups: Fit the suction cups to the heater for proper positioning, and never place them over the heating element.
• Install in Filled Aquarium: Place the heater in a water-filled aquarium; the vertical position gives the best heating performance.
• Check Water Level: In vertical placement, keep the water level above the minimum water level line marked on the heater.
• Horizontal Placement Rule: When mounted horizontally, the heater must stay fully submerged in water at all times during use.
• Wait Before Plugging: Keep the heater submerged for at least 30 minutes before plugging it into an electrical outlet.
• Automatic Start-Up: Once plugged in, the heater starts working automatically, and the indicator light glows during heating.
• Monitor With Thermometer: Use a quality, accurate thermometer to monitor water temperature and confirm the heater is working as expected.
• Top Up Evaporated Water: If evaporation lowers the water volume below the labeled range, add water immediately to restore it.

Additional Information

Precautions

• Unplug Before Contact: Always disconnect all submerged electrical equipment from power before placing your hands in the aquarium water.
• Never Run Dry: Do not operate the heater or leave it plugged in when it is outside of water.
• Keep Rubber Guard: Never operate the heater without the rubber protective guard fitted on the bottom of the unit.
• Avoid Damaged Units: Do not use the heater if the cord, plug or unit is damaged, dropped, or malfunctioning.
• Watch for Leakage: Unplug the heater immediately if abnormal water leakage appears, and never attempt to repair it yourself.
• Use a Drip Loop: Arrange a drip loop in the power cord to stop water from traveling down to the outlet.
• Wet Plug Safety: If the plug or outlet becomes wet, first turn off the fuse or circuit breaker before unplugging the cord.
• Supervise Near Children: Close supervision is necessary whenever the heater or any aquarium appliance is used by or near children.
• Handle Plug Safely: Do not handle the plug with wet hands, and never pull the cord to disconnect it.
• Indoor Use Only: This heater is intended for indoor household use only and should not be used for other purposes.
• Room Temperature Effects: Changes in room temperature may cause slight variations between the preset and actual aquarium water temperatures.

Storage Information

• Avoid Freezing Temperatures: Do not store or install the heater anywhere it may be exposed to temperatures below freezing.
• Protect From Weather: Keep the heater away from outdoor weather exposure, as it is designed only for indoor household usage.
• Unplug When Unused: Always unplug the heater from the outlet when it is not in use or before cleaning.

Shipping & Return

We offer ground, express, priority, and international delivery; see our shipping policy for details.

For return instructions or product concerns, please refer to our detailed refund policy.

Frequently Asked Questions

Q1: What temperature is the Aqueon Preset Aquarium Heater set to?

Ans: The heater is factory calibrated to 78°F, accurate to within plus or minus 1°F. This setting suits most tropical fish, and no adjustment is required. Slight differences in actual water temperature may occur when room temperature changes, so a quality thermometer is useful for monitoring.

Q2: Which wattage should I choose for my aquarium?

Ans: Choose the 50 watt model for 5 to 20 gallons, 100 watt for 20 to 30 gallons, 150 watt for 30 to 55 gallons and 200 watt for 55 to 75 gallons. A correctly sized heater helps the aquarium reach its target temperature.

Q3: Can the heater be placed horizontally in the tank?

Ans: Yes, the heater can be mounted vertically or horizontally using the included suction cups. It works best in the vertical position with water above the minimum water level line. In the horizontal position, it must remain fully submerged at all times.

Q4: How long should I wait before plugging in the heater?

Ans: Keep the heater submerged in the aquarium water for at least 30 minutes before plugging it in. After this period, connect it to an electrical outlet. The heater starts working automatically, and the indicator light turns on when heating is needed.

Q5: What does the red LED light on the heater mean?

Ans: The red LED indicator light turns on when the heater is actively warming the aquarium water. This gives a quick visual check that the heater is in heating mode. Once plugged in and submerged, the heater starts working automatically without any adjustment.

Q6: Does the heater have overheating protection?

Ans: Yes. The heater includes an automatic safety shut-off designed to prevent overheating. Even with this feature, it should never be operated or left plugged in outside of water. Always unplug it and all other submerged equipment before placing your hands in the aquarium water.

Q7: What should I do if the water temperature stays too low?

Ans: If the water is still much cooler after 24 hours, confirm the heater has power and is submerged to the minimum water level line. Also check water circulation, heater wattage for the tank size, and lime scale on the glass, removing scale only after unplugging the heater.

Q8: What should I do if the water temperature is too high?

Ans: After 24 hours of use, check the reading with a quality, accurate thermometer and confirm the heater wattage suits your aquarium size. Also check whether too much water has evaporated. If the water volume has dropped below the labeled range, add water immediately.