Overview Meet the hygger aquarium heater, a robust submersible heater designed for large tanks

Built with explosion-proof quartz glass and a nickel-chromium heating wire, it heats efficiently while maintaining safe operation

The external LED digital display lets you monitor both set temperatures and current readings at a glance, supporting informed decisions without guesswork

Fast, even heating Thanks to a rapid heating system, heating elements distribute heat evenly through the water, helping you reach target temperatures quickly and keep them steady within about one degree

This stable warmth can reduce temperature swings that stress aquatic life and support a comfortable, thriving environment

Explosion-proof design for reliable operation Accurate control within +/- 1 degree Wide setpoint range from 59 to 93 F on the external controller Safety and protection Three intelligent protectors guard both the heater and your tank

Off-water warning stops heating when not fully submerged

Overheat warning triggers auto shut-off if water temp rises beyond safe levels

Low temperature warning alerts you if water drops below the minimum, helping you stay in control

Off-water auto shut-off Overheat auto shut-off Low temperature alert with audible warning Convenience and setup The memory function preserves your preferred temperature after power outages, so you don’t have to reset each time you reconnect power

Its compact form factor measures 11

8 by 2

8 by 1

4 inches, with a 10

1 ft cord and included suction cups plus a mounting bracket

For accuracy, position at a 30–45 degree angle and ensure adequate water circulation

Memory function retains settings after outages Long cord and included mounting hardware Angle guidance for precise placement Tank compatibility and warranty Designed for 80–220 gallon tanks, this heater supports both saltwater and freshwater setups, including fish tanks, turtle habitats, and larger aquariums

Hygger a 12-month warranty and responsive support to help with installation or questions

FAQ Q: What tanks is the hygger 800W heater suitable for

A: Designed for 80-220 gallon tanks; works with saltwater and freshwater setups, including fish, turtles, and betta habitats

Q: What safety features does this heater include

A: Three intelligent protectors—off-water, overheat, and low-temperature warnings—plus auto shut-off when submerged or outside safe conditions