Hygger HG085 Titanium Aquarium Heater with Digital Controller
100W – 15–20 Gallons
$41.99
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Standard U.S. shipping: $12.99; free standard shipping on eligible qualifying orders of $100 or more. Specialty shipments are charged separately.
Shipping & Delivery
Standard/Economy: $12.99; free standard shipping on eligible qualifying orders of $100 or more.
Most in-stock orders process in 1–3 business days. Estimated standard transit is 5–12 business days after dispatch. Backorders, preorders, and special orders follow their stated lead times. Dates are estimates, and separate shipments may have separate charges.
Review the Shipping & Live Arrival Policy and final charges at checkout. International rates and specialty charges are separate from domestic standard offers.
Maintain a stable and reliable aquarium temperature with the Hygger HG085 Titanium Aquarium Heater. Designed for freshwater, saltwater, and reef aquariums, this durable heating system combines a corrosion-resistant titanium heating tube, external temperature probe, and easy-to-read digital controller.
The external controller allows you to monitor and adjust the temperature without placing your hands in the aquarium. Built-in calibration, temperature memory, and overheating protection provide additional control and protection for your fish, corals, and other aquatic livestock.
Available in four wattages for aquariums ranging from approximately 15 to 80 gallons.
Available Sizes
- 100W: Recommended for 15–20 gallon aquariums
- 200W: Recommended for 30–40 gallon aquariums
- 300W: Recommended for 50–60 gallon aquariums
- 500W: Recommended for 70–80 gallon aquariums
Aquarium recommendations are estimates. Proper heater sizing depends on aquarium volume, room temperature, desired water temperature, aquarium material, water movement, and whether the aquarium is covered.
Key Features
- TA2 aviation-grade titanium alloy heating tube
- Suitable for freshwater, saltwater, and reef aquariums
- Corrosion-resistant and durable construction
- External digital temperature controller
- Separate temperature probe for accurate monitoring
- Adjustable temperature from 68°F to 90°F
- Temperature accuracy within approximately 1°F
- Temperature calibration function
- Memory retains the selected setting following a power interruption
- Automatic constant-temperature operation
- Built-in overheating protection
- IP68 waterproof-rated heating element
- Fast and stable heat transfer
- Suction-cup mounting hardware included
External Digital Controller
The digital controller displays the aquarium’s current water temperature and allows the desired temperature to be adjusted without reaching into the aquarium.
When the water temperature falls approximately 1–2°F below the selected setting, the heater automatically begins heating. Once the selected temperature is reached, the heater stops until additional heating is required.
Temperature Calibration
If the controller reading differs from a trusted aquarium thermometer, the HG085 can be calibrated by pressing and holding the positive and negative buttons simultaneously for approximately five seconds.
For best results, verify the aquarium temperature using a separate, dependable thermometer.
Overheating Protection
If the detected water temperature reaches approximately 95–97°F, the heater automatically stops heating and displays an E2 warning. Normal operation resumes after the temperature returns to the heater’s safe operating range.
Built-in safety functions are not a substitute for regular monitoring or an independent aquarium temperature controller.
Size and Pricing
| Wattage | Recommended Aquarium Size | Price |
|---|---|---|
| 100W | 15–20 gallons | $41.99 |
| 200W | 30–40 gallons | $45.99 |
| 300W | 50–60 gallons | $50.99 |
| 500W | 70–80 gallons | $57.99 |
Included
- Hygger HG085 titanium heating element
- External digital controller
- Temperature probe
- Suction-cup mounting hardware
- User instructions
Installation and Safety
Position the heater in an area with consistent water circulation to distribute heat evenly throughout the aquarium. The heating element and temperature probe should remain fully submerged during operation.
Always unplug the heater before performing aquarium maintenance or removing it from the water. Allow the heating element to cool before handling. Never operate the heater outside of water.
For larger, valuable, or temperature-sensitive systems, consider using two appropriately sized heaters and an independent temperature controller to provide additional redundancy.
Why Shop With Us
Infinity and Beyond Aquatics offers carefully selected aquarium equipment for freshwater, saltwater, and reef systems. If you need assistance selecting the appropriate heater size for your aquarium, knowledgeable support is available.