Tetra 26446 HT Submersible Aquarium Heater With Electronic Thermostat 100-Watt Multicolor 10-30 Gallon

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). Inside, silicon carbide crystals improve heat distribution and transfer. The strong glass tube is heat and shock resistant. This submersible heater is easy to use – just attach to the inside of the aquarium wall using the suction cup (included) in an area with good water circulation. The Tetra HT Submersible Heater is available in different wattages to fit your aquarium: use the 50-watt HT10 in 2 to 10 gallon aquariums; 100-watt HT30 for 10 to 30 gallons; 150-watt HT40 for 30 to 40 gallons; and 200-watt HT55 for 40 to 55 gallons. This heater is UL Listed. Since 1951, Tetra has developed the world’s most comprehensive body of fish food knowledge, and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need – from a large variety of quality fish food and innovative equipment to test kits and decor.

Highlights: AQUARIUM HEATER: Submersible heater is designed to keep your aquarium at the optimum temperature. AUTOMATIC THERMOSTAT: Electronic thermostat keeps water at a consistent 78 degrees. INDICATOR LIGHT: The red light shows when water is heating; green indicates that the heater is on standby. EASY TO USE: Just attach to an aquarium wall – the suction cup securely attaches heater to tank. SIZE: Use this 100-watt heater for 10 to 30 gallon aquariums – UL Listed.

Key details: Item Weight: 5.6 ounces | Department: Unisex-Adult | Batteries: Product Specific batteries required. | Customer Reviews: 4.4 4.4 out of 5 stars (16,671) 4.4 out of 5 stars | Item Package Dimensions L x W x H: 7.24 x 3.35 x 1.97 inches | Item Dimensions LxWxH: 1.63 x 3.5 x 8.25 inches | Brand Name: Tetra | Target Audience Keyword: fish | Directions: See instructions | Warranty Description: See label

How it fits your day: Use the key specs and highlights above to match it to your setup, space, or routine before you check out.

Customer feedback: 4.4/5 average rating.

Customers say: Customers find the aquarium heater works well, particularly for 10-gallon tanks, and appreciate its compact size that's ideal for tanks between 2 to 10 gallons.

Review snippets: Works well. I was nervous at first because there was no device to see temperature but its not needed when you have a sticker thermostat. The speed of the temp rising was good to not shock my betta. It took / I’m using the Tetra HT 50-watt heater in a 5-gallon tank, and it’s been excellent so far. The built-in thermostat keeps the water right around 78°F, and the temperature stays steady day and night without needing to adjust anything. I

From the manufacturer Tetra HT Submersible Aquarium Heater With Electronic Thermostat Tetra's HT line of heaters are easy-to-use and work in aquariums ranging from 2 to 55 gallons. The heaters have electronic thermostats that automatically adjust heat output to keep water at a constant 78 degrees F. All HT heaters have indicator lights to let you know when the heater is on, heating the aquarium. All Tetra HT heaters have red/green indicator lights to let you know when the heater is heating(red) or on standby(green). The low voltage thermostat maintains water at 78°F without any adjustment required. Be sure purchase the correct heater for your tank size. Buying a heater too small for your tank can cause under heating. It is critical to ensure your tank is equipped with a hood or glass canopy to contain the heat inside the aquarium. All Tetra HT Heaters will shut off if an electrical short is detected for your safety. See More