Price: $64.99 - $6.58
(as of Aug 31, 2025 23:01:31 UTC – Details)
Tetra HT Submersible Heater
The Tetra HT Submersible Heater is designed to keep your aquatic fish comfortable, with an electronic thermostat that automatically maintains a consistent water temperature of 78 degrees and prevents overheating, extending heater life. An indicator light lets you know when the water is heating (red light) and when it reaches the proper temperature (green light).
Features
- Electronic thermostat for automatic temperature maintenance
- Indicator light for heating status (red for heating, green for optimal temperature)
- Silicon carbide crystals for improved heat distribution and transfer
- Strong, heat and shock resistant glass tube
- Easy to use with a suction cup for attachment to the aquarium wall
- Available in different wattages for various aquarium sizes (50-watt for 2-10 gallons, 100-watt for 10-30 gallons, 150-watt for 30-40 gallons, and 200-watt for 40-55 gallons)
- UL Listed for safety
Pros
- Automatically maintains optimal water temperature for most tropical fish
- Indicator lights provide clear status updates
- Durable construction for long-lasting performance
- Easy installation and concealment behind plants or décor
- Safety features include automatic shut-off in case of electrical shorts
- Suitable for a range of aquarium sizes
Cons
- Requires careful handling and placement to avoid electrical hazards
- Must be fully submerged and placed in an area with good water circulation
- No temperature adjustment option, set to maintain 78°F
Product Details
- Product Dimensions: 5.25 x 1.62 x 3.5 inches; 7.84 ounces
- Item Model Number: 26447
- Department: Unisex-Adult
- Batteries: Product Specific batteries required
- Date First Available: March 22, 2007
- Manufacturer: Tetra
- ASIN: B000OQO69Q
- Best Sellers Rank: #5,399 in Pet Supplies, #9 in Aquarium Heaters
- Customer Reviews: 4.4 out of 5 stars, 16,291 ratings
Safety and Operation
All Tetra HT heaters have indicator lights to let you know when the heater is on. It will be red when heating and green when the proper temperature has been reached. The HT10 uses a built-in electronic thermostat to automatically maintain water at 78° F, ideal for most tropical fish, with no adjustment required. Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies. The HT heater is fully submersible and can be installed vertically or horizontally, with a small footprint making it easy to conceal behind plants or other décor. Please read all label information upon delivery and do not plug the heater into an electrical outlet until it is placed inside the aquarium. All Tetra HT Heaters will shut off if an electrical short is detected for your safety.
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