Information about AQQA Submersible Aquarium Heater
Keep your aquatic pets safe and comfortable with the AQQA Submersible Aquarium Heater. Engineered for maximum durability and precise climate control, this heater features a high-purity nickel wire heating element encased in an explosion-proof quartz glass tube and a 3mm heat-deforming resistant protective case. Complete with an external dual display controller, it delivers reliable, effortless temperature management for aquariums of all sizes.
Dual LED Real-Time Temperature Monitoring
Eliminate the guesswork from fish tank maintenance. The external controller features a high-definition dual LED display that simultaneously shows your current water temperature alongside your target setting, allowing you to monitor and adjust conditions instantly without getting your hands wet.
Intelligent Dual Safety Protection (E1 & HH)
Built to protect both your equipment and your aquatic life, the heater features smart safety sensors. E1 Dry-Run protection automatically shuts off power if the heater is removed from water, while HH Overheat protection prevents dangerous high-temperature spikes.
Smart Auto-Power Memory
Power outages won’t disrupt your tank’s ecosystem. The built-in memory chip automatically saves and restores your customized temperature settings as soon as power returns, removing the hassle of manual resets.
Reinforced, Corrosion-Resistant Build
Designed for long-term reliability in harsh aquatic environments, this unit features a 3mm heavy-duty protective guard, high-temperature corrosion-resistant housing, and an upgraded power cord built to withstand bending, wear, and everyday tank maintenance.
Built for Reliability
A reinforced 3mm protective cover and durable power cord resist heat, impacts and daily wear.
Fast, Even Heating
A 23mm heating tube provides approximately 32% more heating area than standard 20mm tubes.
Dual LED Display
View the current water temperature and your target temperature simultaneously for easy monitoring.
Power-Off Memory
Automatically restores your previous temperature setting after a power interruption.


















Works great
Got this in one day and only took 35 minutes to get my 120 g tank back up to safe levels,Thanks.
Great heater
Works well
Good