Smart Digital Aquarium Heater for Small Tanks

Why you'll love it

Keep your fish happy and healthy with precise temperature control designed specifically for small aquariums. This intelligent heater takes the guesswork out of maintaining the perfect water temperature for your aquatic friends.

Keep reading for all the details.

Product Description

This 30-watt aquarium heater is perfectly sized for 1-5 gallon tanks, making it ideal for betta fish, small tropical setups, or desktop aquariums. The high-resistance heating wire provides uniform, stable heating that's built to last, working in both freshwater and saltwater environments.

What really sets this heater apart is its external digital controller. Instead of dunking your hands in the tank to adjust a dial, you simply use the external buttons to set your desired temperature. The clear digital display shows real-time water temperature, and you can easily switch between Fahrenheit and Celsius by holding the setting button for 5 seconds.

The temperature range covers 59-93°F (15-34°C), giving you precise control for different fish species. Thanks to the built-in memory function, your settings stay saved even after power outages - no need to reprogram everything.

Safety features include automatic shutoff when water gets too hot (over 96°F) or if the heater isn't fully submerged. When either situation occurs, you'll see an error code (E1 for out of water, H1 for overheating) and hear an alarm until the issue is resolved.

The protective cover easily removes for cleaning, which is super handy when algae or debris builds up over time.

Interesting Points

External Digital Control

No more wet hands! The external controller lets you adjust temperature settings without reaching into the tank, keeping your hands dry and your fish undisturbed.

Smart Memory Function

Power outages won't reset your carefully chosen temperature settings. The heater remembers your preferences and returns to them automatically when power is restored.

Dual Safety Protection

Built-in sensors prevent overheating and dry-running damage. If water gets too hot or the unit isn't fully submerged, it shuts off automatically and alerts you with error codes.

Easy Maintenance Design

The removable protective cover makes regular cleaning simple, helping maintain heating efficiency and extending the unit's lifespan.

Product Specifications

• Power: 30 watts
• Tank capacity: 1-5 gallons
• Temperature range: 59-93°F (15-34°C)
• Compatible with freshwater and saltwater
• Digital LED display with external controller
• Memory function for power outages
• Overheating protection (shuts off at 96°F)
• Out-of-water protection
• Error code display (E1, H1)
• Removable protective cover

Usage Notes

• Ensure heater is fully submerged before powering on
• Allow unit to acclimate to water temperature before plugging in
• Clean protective cover regularly to maintain efficiency
• Monitor error codes and address issues promptly
• Long press setting button for 5 seconds to switch between °F and °C

Package Inclusion

• 30W aquarium heater with protective cover
• External digital controller
• Power cord

Give your fish the stable, comfortable environment they deserve with precise digital temperature control that's actually easy to use.

Shipping and Returns

• Listed Shipping: 2–4 days.
• Returns: Returns policy.