This 50W mini submersible heater provides stable and precise temperature control for nano and small aquariums from 1 to 10 gallons. Built with high-strength ABS, thickened quartz glass, and triple temperature sensors, it delivers safe, accurate and consistent heating for bettas, shrimp, guppies and small freshwater or saltwater tanks.

The built-in LED real-time temperature display removes the need for a separate thermometer, and the external controller allows you to adjust settings without placing your hand inside the tank—keeping fish calm and maintenance simple.

Key Features

✔ Accurate Triple-Sensor Control
More precise readings and safer temperature regulation (±1°F).

✔ Automatic Shutoff & Constant Temperature
Stops heating at the set temperature and restarts as needed.

✔ Durable Build
High-strength ABS shell + thick quartz glass = heat resistant, crack-proof, long-lasting.

✔ LED Temperature Display
Shows real-time water temperature—no separate thermometer needed.

✔ External Temperature Adjustment
Change settings without disturbing fish.

✔ Ideal for Nano Tanks
Perfect for 1–10 gallon aquariums; freshwater or saltwater compatible.

✔ Safe & Reliable
Must be fully submerged; includes 1-year warranty and 24/7 support.

Specifications

• Power: 50W

• Voltage: 110–120V / 60 Hz

• Heater Size: 4 × 2.6 × 0.9 in

• Power Cord: 4 ft

• Tank Size: 1–10 gallons

• Materials: ABS shell + quartz glass

What’s Included

• 1 × 50W Submersible Heater with LED Display

• 1 × External Temperature Controller

• User Manual