Aqua One 200 W Glass Aquarium Heater - Submersible Thermostat for Tanks

The Aqua One 200 W Glass Aquarium Heater ensures precise and consistent warmth for freshwater, tropical, and marine tanks up to 200 litres.

Designed for durability and ease of use, this glass heater maintains stable temperatures with an adjustable thermostat and clear temperature display.

Features

• 200 W power – suitable for aquariums up to 200 L 
• Compact glass design (~27.5 cm) with cable length of ~1.8 m 
• Large adjustable temperature range: 20 °C to 34 °C 
• Fully submersible with double insulation for maximum safety 
• Built-in thermostat with easy-to-read and adjust dial 
• Automatic shut-off and indicator light for safety and convenience 
• Suitable for marine, tropical, and freshwater environments 
• Backed by a 2 to 3-year warranty for reliable performance 

Why you should buy

This Aqua One heater delivers dependable, thermostatically controlled warmth with a “fit-and-forget” design that’s ideal for both aquarists and novices. Its compact size and strong safety features—like double insulation, automatic shut-off, and a visible heating indicator—ensure both peace of mind and optimal aquarium health. Trustworthy, cost-effective, and backed by a solid warranty, it’s the smart solution for long-term tank care and fish wellbeing.

FAQs

What size aquarium is this heater suitable for?
Suitable for aquariums up to 200 litres in volume. 

How do I customize the temperature?
Use the built-in thermostat dial to adjust the temperature between 20 °C and 34 °C. The display makes it easy to select and read your target temperature. 

Is it safe to fully submerge the heater?
Yes. It’s fully submersible and features double insulation for enhanced safety. 

What happens when the aquarium reaches the set temperature?
The heater automatically shuts off once the desired temperature is reached and restarts when the water cools down. An indicator light shows when it’s actively heating. 

What warranty does this product come with?
It comes with a reliable 2-year warranty, and some listings offer up to 3 years for added peace of mind.