hygger Aquarium Heater 300W-1000W | Submersible with Digital LED Controller & Auto Shut-Off for Freshwater & Saltwater

Reliable temperature control for freshwater and saltwater tanks

The hygger submersible aquarium heater is designed to maintain even, steady warmth across a range of tank sizes. With wattages from 300W to 1000W, you can pick the model that best fits your setup. Check Hygger's size chart for the right match; for example, 500W is commonly used for tanks roughly 66 to 135 gallons. The unit’s compact profile fits neatly under most lids, and a long power cord offers flexible placement options.

Smart protection that reduces risk

Smart safety features help you sustain a stable environment with less effort. The heater automatically cuts power if water temperature climbs too high or if the element isn’t fully submerged, and an alert signals when action is needed. This design aims to help prevent overheating and dry-running scenarios.

Precise, easy temperature control

The digital LED controller lets you set a target temperature across a wide range and displays the current water temperature at a glance. The controller can be mounted on the tank edge with the included bracket, enabling adjustments without reaching into the water.

• Adjustable range 59°F to 93°F with about ±1°F accuracy
• LED readout shows current temperature, setpoint, and warnings
• Easy installation with 3 suction cups, bracket, and hook included

Durable build for long-term reliability

Constructed from explosion-proof quartz glass and a high-temperature nickel-chromium heating wire, this heater provides efficient heating with durability in mind. The protective PC plastic guard cushions your fish from accidental contact and enhances safety during routine maintenance.

What’s in the box and warranty

Each package includes 1 heater, 1 digital controller, 3 suction cups, 1 mounting bracket, 1 hook, and a 12-month warranty for added peace of mind.

Versatile for freshwater and saltwater environments

Built to perform in both freshwater and saltwater habitats, the heater is designed to deliver consistent heating across diverse aquatic setups and species.