Mini Aquarium Heater LED Display | Adjustable 18–34°C Fish Tank
Mini Aquarium Heater LED Display | Adjustable 18–34°C Fish Tank
Keep Your Fish Comfortable Year-Round with Precise, Consistent Warmth
Designed for small aquariums and nano tanks, this Mini Aquarium Heater with LED Display delivers stable, adjustable temperature control from 18°C to 34°C — perfect for tropical fish, betta tanks, turtle enclosures, and more. The bright LED screen lets you monitor water temperature at a glance, so you always know your aquatic pets are in the ideal environment.
Key Features
- Real-Time LED Temperature Display: Clearly read the current water temperature without guessing — the bright digital screen updates continuously.
- Adjustable Constant Temperature (18–34°C): Dial in the exact temperature your fish species need and the heater maintains it automatically.
- Dual Safety Protection: Built-in over-heat protection and water-off auto shutoff guard your tank and your home if water levels drop unexpectedly.
- Slim, Compact Design: The slender body fits comfortably in low-water turtle tanks, betta tanks, and nano aquariums with limited space.
- Multiple Wattage Options: Available in wattages suited for tanks from 4.5 to 12 liters, so you can match the right power to your tank size.
- Waterproof Heating Element: Fully submersible, safe heating rod with a generous 190 cm power cord for flexible placement.
- 100W Output: Operates on standard 220–240V power supply for fast, efficient water warming.
Specifications
| Power | 100W |
| Voltage | 220–240V |
| Temperature Range | 18–34°C (adjustable) |
| Cord Length | 190 cm |
| Suitable Tank Size | 4.5–12 liters |
| Display | LED Digital Screen |
| Safety Features | Over-heat & Water-off Protection |
| Country of Origin | Made in Mainland China |
Who Is This For?
This heater is ideal for hobbyists and beginners alike who keep small freshwater aquariums. Whether you house betta fish, guppies, shrimp, or a small turtle, maintaining a stable water temperature is one of the most important aspects of keeping your aquatic pets healthy and thriving. Learn more about proper fish care at the U.S. Fish & Wildlife Service.
Frequently Asked Questions
Q: What tank sizes is this mini aquarium heater suitable for?
A: This heater is designed for small nano aquariums ranging from approximately 4.5 to 12 liters. Its slim, compact form factor makes it especially well-suited for betta tanks, shrimp tanks, and low-water turtle enclosures.
Q: How does the water-off protection work on this fish tank heater?
A: If the water level drops below the minimum safe operating level — such as due to evaporation — the heater automatically shuts off to prevent the element from overheating while exposed to air. This dual-protection system (combined with over-heat shutoff) helps keep your tank and home safe.
Q: Is the LED display easy to read, and can I set a specific temperature?
A: Yes! The bright LED digital display shows the current water temperature in real time. You can adjust the target temperature anywhere between 18°C and 34°C using the built-in controls, and the heater will maintain that temperature automatically once set.
Q: What power supply does this aquarium heater require?
A: This heater operates on a 220–240V power supply at 100W. Please ensure your local power outlet matches these specifications before use. No batteries are required — it plugs directly into a wall socket.