HITOP Automatic Submersible Aquarium Heater

If your aquarium temperature drops or fluctuates, this submersible aquarium heater helps keep water stable for fish and plants. The adjustable thermostat covers 20 to 34°C and the unit switches off automatically once the set temperature is reached, reducing the risk of overheating while maintaining a consistent tank environment.

Made from 2 mm thickened quartz glass, the heater is more robust than thinner alternatives and less likely to crack during normal use. It is fully submersible and can be mounted vertically or horizontally with suction cups; three cups are supplied, including an extra for backup. With a 50W output and a 1.5 metre power cord, it is best suited to small aquaria of around 20 to 60 litres. A stick-on thermometer is included for quick visual checks of tank temperature, though precise or sensitive setups may prefer a dedicated digital thermometer for continuous monitoring.

Key Features

• Adjustable 20 to 34°C thermostat with automatic shut-off for stable water temperature
• 2 mm thickened quartz glass for improved durability and safer operation in the tank
• Fully submersible with vertical or horizontal mounting and three suction cups for secure placement
• 50W output recommended for tanks of about 20 to 60 litres, with a 1.5 metre power cord for flexible positioning
• Includes stick-on thermometer for quick, at-a-glance temperature checks

Frequently Asked Questions

Is this heater suitable for small fish tanks?

Yes. It is a 50W submersible heater recommended for aquariums 20-60 L, designed specifically for small tanks to maintain stable temperatures.

How do I install and position it in the aquarium?

Simply submerge and fix vertically or horizontally using the included suction cups; it comes with three suction cups total, one extra as backup.

What temperature range does it support and does it regulate automatically?

Adjustable between 20 and 34°C; it maintains a constant temperature and shuts off automatically once the selected temperature is reached.

Is the heater safe and durable for my fish?

The heating tube uses 2mm thickened quartz glass, 33% thicker than 1.5mm models, offering increased safety for both people and fish.

Does it come with a thermometer and is there warranty or support?

Yes. A stick-on thermometer is included, and the product has a 24-month warranty with 24-hour professional after-sales service.

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