Hepo Submersible Aquarium Heater for Fish

If you need a simple way to stop temperature swings in a freshwater or marine aquarium, this 25 W submersible quartz heater acts as an automatic thermostat to keep water temperature steady. It is supplied with a standard UK three-pin plug and a 1.5 metre cable for straightforward installation. The heater is part of a quartz range designed for aquarium use and offers adjustable control between 20 and 32 degrees Celsius.

The adjustable 20 to 32 degrees range gives enough control to match many species and setup preferences, while the heater’s automatic regulation helps maintain the chosen temperature without constant monitoring. At 25 W this model is the lowest-power option in the series, so it is most useful for small tanks or as a gentle top-up heater in well insulated setups. Energy efficiency class A means it is designed to run with lower energy use compared with less efficient units.

Key Features

• Automatic temperature control – maintains the set temperature without frequent adjustment.
• Adjustable 20 to 32 degrees Celsius – flexible range to suit different aquarium requirements.
• Submersible quartz design – made for continuous use inside freshwater or marine tanks.
• Includes UK three-pin plug and 1.5 metre cable – ready to install with standard UK mains connection.
• Energy efficiency class A – helps reduce running costs compared with lower-rated heaters.

Frequently Asked Questions

Is this heater suitable for freshwater and marine aquariums?

Yes. This submersible thermostat works in both freshwater and marine aquariums and belongs to a range ideal for aquariums up to 300 litres in size.

What temperature range can I set with this heater?

You can set the thermostat to heat between 20 and 32 degrees Celsius; the heater will then automatically regulate aquarium temperature.

Which model size is this listing and is it energy efficient?

This listing is the 25w model (HP-608/25W). The specification lists Energy Efficiency Class A rating.

How do I install or set up the heater in my tank?

The unit is submersible and supplied with a standard 3 pin UK plug and a 1.5 metre cable; position it fully submerged and connect to power.

Is this heater suitable for beginners setting up a new aquarium?

Yes. It automatically regulates temperature and has an adjustable thermostat, making it straightforward for new aquarium owners to maintain stable temperatures.

Check the recent prices for Hepo HP-608 Quartz Aquarium Heater 25W below.