hygger Aquarium Heater 75W/150W/300W - Submersible, Explosion-Proof for Freshwater & Saltwater Tanks

Overview

The hygger Aquarium Heater delivers reliable warmth for both freshwater and saltwater setups. Available in 75W, 150W, and 300W, it combines a quartz glass body with a nickel-chromium heating element and silicon carbide heat transfer to provide steady, efficient heat. An LED digital display paired with an external controller makes it easy to monitor real-time temperature and fine-tune settings with precision.

Color-coded indicators reveal the heater’s status: red lights indicate heating, green lights indicate stable temperature. The unit also includes a memory function so preferred settings are retained after power interruptions, reducing the need to reconfigure after outages.

Smart control at a glance

• LED digital readout shows real-time temperature within a 59°F–93°F (15–34°C) range
• External hand controller allows quick adjustments, with 1-degree step increments
• Power-off memory preserves your last settings for easy resumption after outages

Safe, durable design

Built for longevity, the heater uses robust materials and protective features. If exposed to air, it can display an ER fault and shut off; when fully submerged, it resumes operation. An intelligent induction system promotes stable performance and safer operation.

• Anti-dry protection helps prevent damage when water levels change
• Over-temperature protection safeguards against excessive heat
• Quartz glass with explosion-proof exterior and a high-temperature resistant plastic cover

Installation & tank compatibility

Designed for flexibility, the hygger heater can be installed horizontally or vertically and is suitable for both saltwater and freshwater tanks. To maximize safety and longevity, follow these notes.

• Do not bury the heater in sand
• Keep the water surface at least 2 inches above the heater during operation
• Ideal for small tanks, including compact fish tanks and turtle habitats

What you get (highlights)

• Compact, versatile heater with multiple watt options
• LED display and external controller for precise control
• Reliable protection features support consistent, safe operation