hygger Aquarium Heater 300W with Digital Controller

The hygger Aquarium Heater (model HG-043) is a 300W submersible heater for 40 to 80 gallon saltwater and freshwater aquariums. The series also includes 500W, 800W and 1000W sizes, and a 200W version for 20-40 gallon tanks.

Digital LED controller

The adjustable range is 59℉-93℉ with an accuracy of ±1°F. The controller shows the current water temperature and mounts on the tank edge with the included bracket, so you can adjust settings without reaching into the water.

Protection

If the water exceeds 94°F or drops below the minimum water level, the heater cuts power, displays an error code and sounds an alarm. That covers a stuck heater and a heater left exposed during a water change.

Build

The element is explosion-proof quartz glass with high-temperature resistant nickel-chromium wire for fast heating. A guard of PC plastic protects fish from direct contact.

Specs

• Heater length: 10.8 inches
• Voltage: 110-120V
• Power cord: 10.1 feet
• Includes heater, controller, 3 suction cups, bracket and hook

The long cord helps with cabinet setups and sumps.

Sizing

Choose wattage by tank size and room temperature using hygger’s size chart. For 20-40 gallons, the 200W version is the better fit.

hygger offers a 1 year warranty (12 months).

Compare

For a similar digital 300W from another brand, see the HiTauing 300W heater. For smaller tanks, hygger’s 100W heater suits smaller tanks.

Who it suits

Keepers of mid-size and large tanks, including reefs with sumps, who want precise control, alarms and a guarded element. Pair it with a separate controller like the Inkbird ITC-308 for redundant protection.

In a sump, mount the heater in the return section where water flows past it steadily, and keep it clear of the skimmer and any filter socks. Check the alarm works by watching for the error display the first time you lower the water level during a change.