Why You’ll Love It Keep your aquatic pets safe and comfortable with the hygger 142 nano heater, designed for small tanks up to 15 gallons. Perfect for betta fish, shrimp tanks, nano reefs, and shallow turtle habitats, this compact submersible heater delivers precise, reliable temperature control with intelligent safety features you can trust. Small, big on safety and performance to protect tank inhabitants. Key Features Smart Safety Alerts with Auto Shut-Off Built-in dry-run protection and overheat guard instantly shut off the heater and trigger audible alarms and LED error codes (“Er”, “EE”, “EU”) in case of low water or temperature irregularities, preventing damage or injury. Precision Temperature Control (59°F–93°F) Easily set your preferred temperature using the external digital controller—no need to put your hands in the water. Real-time temperature display and indicator lights let you know when the heater is actively warming or in standby mode. Compact, Low-Profile Design At just 4″ x 12″ x 1″, this sleek nano heater blends into your tank’s environment and fits discreetly in 1–15 gallon tanks, including quarantine tanks, breeding tanks, and paludariums. Ideal for tight spaces without compromising performance. Auto-Memory Function In the event of a power outage, the heater remembers your last set temperature—no need to reset after power resumes. Ensures uninterrupted care for your sensitive aquatic species. Fully Submersible with Easy Installation Mount the heater vertically or horizontally using the included suction cups. Works best when placed at least 5 inches below the water surface and in an area with water flow. The waterproof quartz glass body resists cracking and corrosion, even in saltwater setups. Energy-Efficient & Silent Operation Engineered for quiet heating, this nano heater runs efficiently without disturbing your fish or your space, perfect for bedroom or office tanks. Ideal For: Betta, shrimp, and nano reef tanks (1–15 gallons) Turtle tanks with shallow water setups Quarantine and breeding tanks Paludariums and freshwater/saltwater tanks Usage Tips Before Installation Inspect the heater for any visible damage. Do not use if cracked or broken. Verify tank size compatibility: Designed for tanks between 1–15 gallons only. Make sure your power source is UL-certified and avoid using extension cords. Installation Instructions 1. Mount the Heater Use the included suction cups to mount the heater vertically or horizontally. Ensure placement is at least 5 inches below the water surface. Position it in an area with moderate water flow for even heat distribution. 2. Avoid Obstructions Keep the heater away from gravel, substrate, decorations, and other objects to avoid overheating or malfunction. Do not bury the heater under gravel or sand. 3. Connect the External Controller Plug the digital controller into the heater. Mount the controller outside the tank for easy access and monitoring. Setting the Temperature 1. Use the controller buttons to adjust the desired temperature (range: 59°F to 93°F). 2. The LED screen shows: Current water temperature Heating status (active or standby) 3. The heater will automatically start/stop based on the set temperature. Safety Features & Alerts Dry-Run & Overheat Protection If the water level drops too low or the temperature exceeds limits: - The heater shuts off automatically - Audible alarm sounds - Error codes display (“Er”, “EE”, “EU”) Auto-Memory Function Retains temperature settings after power outages—no reset needed. Cleaning & Maintenance Unplug the heater and allow 15 minutes to cool before handling. Rinse monthly with fresh water if used in saltwater tanks to prevent buildup. Use a soft cloth to gently wipe the heater; avoid using abrasive pads or chemical cleaners. Safety Reminders Do not operate the heater dry—always keep it fully submerged. Never plug in or remove the heater with wet hands. Avoid placing near magnetic objects, which may interfere with sensors. Regularly inspect for signs of wear or damage. Specification Package: 1x Heater rod with an external controller 1x User manual People Also Buy hygger Aquarium Extendable LED Light 14-42W retractable for 12"-52" tanks10% OFF $29.99 – $71.99Price range: $29.99 through $71.99 Rated 5.00 out of 5 hygger Black Hole Aquarium Heater 200-1000W ±1°F precision for 8-260 Gal10% OFF $57.97 – $77.97Price range: $57.97 through $77.97 Rated 5.00 out of 5 hygger Dual Blade Magnetic Glass Cleaner For 0.25"-0.8" thick glass tanks10% OFF $14.97 – $26.47Price range: $14.97 through $26.47 Rated 5.00 out of 5 hygger High Flow Air Pump 475–2550GPH with 6–46 outlets10% OFF $84.49 – $198.97Price range: $84.49 through $198.97 Rated 5.00 out of 5
