GloFish
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GloFish Submersible Heater 50 Watts, for Aquariums Up to 10 Gallons, UL Listed,BLACK
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GloFish Submersible Heater 50 Watts, for Aquariums Up to 10 Gallons, UL Listed,BLACK
Bringing Color to Life: GloFish fluorescent fish add an alluring array of brilliant colors to any aquarium. With a full range of vibrant aquarium kits, lighting and décor, consumers can create an underwater fluorescent wonderland.
GloFish Submersible Heater 50 Watts, for Aquariums Up to 10 Gallons, UL Listed,BLACK
Item #: 221101280

GloFish Submersible Heater 50 Watts, for Aquariums Up to 10 Gallons, UL Listed,BLACK

Item #: 221101280

AUD 44

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Bringing Color to Life: GloFish fluorescent fish add an alluring array of brilliant colors to any aquarium. With a full range of vibrant aquarium kits, lighting and décor, consumers can create an underwater fluorescent wonderland.
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Product Details

Shop for GloFish Submersible Heater 50 Watts on Ubuy Australia. Best price and free shipping available. Suitable for aquariums up to 10 gallons. UL Listed. Get yours now!
  • Submersible heater designed for aquariums up to 10 gallons
  • Automatic thermostat maintains water at a consistent 78 degrees
  • Indicator light shows when water is heating and when heater is on standby
  • Easy to use with suction cup attachment
  • 50-watt heater with UL Listing
  • GloFish fluorescent fish add brilliant colors to aquariums
Item Weight7.4 ounces (209.79 grams)
ManufacturerSpectrum Brands Pet
Item model numberAQ-78403
BatteriesProduct Specific batteries required.
Date First AvailableApril 19, 2021
Item Package Dimensions L x W x H7.24 x 3.31 x 1.93 inches (18.4 x 8.4 x 4.9 cm)
Item Dimensions LxWxH1.81 x 3.25 x 7.19 inches (4.6 x 8.3 x 18.3 cm)
Item Weight0.46 Pounds (210 grams)
Brand NameGloFish
Target Audience KeywordFish, fish
DirectionsSee instructions
Model NameSubmersible Heater
ColorBlack
Size50
Age Range DescriptionAll Life Stages
Number of Items1
StyleUnflavored
Included ComponentsSee label
Specific Uses for ProductActive

Product Description

GloFish Submersible Heater 50 Watts, for Aquariums Up to 10 Gallons, UL Listed,BLACK

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Customer Questions & Answers

  • Question: What is the maximum tank size for the GloFish Submersible Heater?

    Answer: The GloFish Submersible Heater is designed for aquariums up to 10 gallons in size. This makes it an ideal choice for small tanks, such as nano aquariums or betta fish tanks. Proper heating is critical for maintaining a stable environment for your aquatic pets, and using a heater suited to your tank's size ensures optimal performance and efficiency.
  • Question: Is the GloFish Submersible Heater easy to install?

    Answer: Yes, the GloFish Submersible Heater is straightforward to install. Simply submerge the heater fully in the aquarium, ensuring it's positioned vertically or horizontally as per your tank's layout. This heater is engineered to maintain consistent temperatures, making it perfect for aquarists looking to warm up their water effectively. After installation, just plug it in and monitor the temperature using a reliable thermometer.
  • Question: Is this heater safe for use in freshwater and saltwater aquariums?

    Answer: The GloFish Submersible Heater is suitable for both freshwater and saltwater aquariums. Its UL-listed design ensures that it meets safety standards, making it a reliable choice for various aquatic environments. Whether you are maintaining a vibrant freshwater tank or a delicate saltwater setup, this heater will help create a stable habitat for your fish and plants.
  • Question: How do I set the temperature on the GloFish Submersible Heater?

    Answer: The GloFish Submersible Heater automatically maintains a temperature range of approximately 78°F to 80°F, ideal for most tropical fish species. The heater doesn’t have external temperature controls but utilizes an internal mechanism to achieve and maintain the optimal temperature. It's a plug-and-play device, allowing you to focus on enjoying your aquarium without micromanaging temperature settings.
  • Question: Can I use the GloFish Submersible Heater in an aquarium with other heating devices?

    Answer: Yes, you can use multiple heating devices in an aquarium if necessary. However, when using the GloFish Submersible Heater alongside other heaters, ensure that they are set to similar temperatures to prevent temperature fluctuations which can stress fish. Monitoring the overall water temperature with a thermometer can also help you maintain stability in the tank.
  • Question: What materials is the GloFish Submersible Heater made from?

    Answer: The GloFish Submersible Heater is constructed using high-quality materials that are robust and durable. The outer surface is designed to withstand prolonged exposure to water while providing efficient heating. This ensures that the heater not only performs well but is also resistant to corrosion and wear over time, enhancing the longevity of your aquarium setup.
  • Question: How long should the GloFish Submersible Heater be left on?

    Answer: The GloFish Submersible Heater should be left on continuously to maintain a consistent temperature in your aquarium. It's designed to be safe for long-term use, ensuring that your fish and plants thrive in a stable environment without abrupt temperature changes. Regularly checking on the heater can help confirm it is working properly and keeping the desired temperature.
  • Question: What is the appropriate location to place the GloFish Submersible Heater in the tank?

    Answer: For optimal performance, place the GloFish Submersible Heater near a water flow source, such as a filter outlet or air stone. This helps distribute the heated water throughout the tank evenly, preventing hot and cold spots. Proper placement ensures that all aquatic inhabitants feel the benefits of the heated environment uniformly.
  • Question: How do I know if the GloFish Submersible Heater is working properly?

    Answer: To ensure your GloFish Submersible Heater is functioning correctly, monitor the water temperature with a separate aquarium thermometer. A noticeable change in temperature indicates that the heater is operational. Additionally, you can watch for consistent heating patterns; if the water temperature fluctuates significantly, it may signify an issue that needs addressing.
  • Question: Where can I buy the GloFish Submersible Heater 50 Watts in Australia?

    Answer: You can purchase the GloFish Submersible Heater 50 Watts from Ubuy. Ubuy is a trusted online platform known for offering a wide range of aquarium supplies, making it easy for you to find what you need for your aquatic environment in Australia. Simply visit their website and search for the heater to explore your options.

GloFish Aquarium Heaters AQ-78403 Editorial Review

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“Promt delivery. Seems like a good product.”

22 July 2026 · via Trustpilot
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“It was the best service ever received by any company from my online shopping experience in the last 10yrs”

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“so easy to order delivery was way earlier than i expected”

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“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”

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“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”

17-Jul-26 · via Trustpilot
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AUD 44

Order now and get it around Thursday, August 27

QTY:

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Features & Benefits

  • GloFish fluorescent fish adds an alluring array of brilliant colors to the aquarium.
  • Aquarium kits, lighting, and decor allow transforming any aquarium into a GloFish environment.
  • The GloFish Submersible Heater maintains the aquarium temperature at 78 degrees.
  • An indicator light shows when the water is heating or reaches the proper temperature.
  • The heater is easy to use - just attach it inside the aquarium's wall using the suction cup.
  • GloFish Submersible Heater is designed for aquariums up to 10 gallons, and it is UL Listed.

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