Aqua One Quartz 500 Watt Aquarium Heater
The Aqua One GH Quartz Heater uses high quality, shatter-resistant quartz glass and features thermal cut-off technology to ensure safe and stable water temperature control.
Fish are protected by the heater casing, which prevents direct contact with the heating element. The thermal cut-off system automatically shuts off the heater when the water reaches the set temperature and reactivates once the temperature drops.
Adhesive suction cups allow for easy and secure attachment to the aquarium. Compatible with glass, plastic, and acrylic tanks.
| Specifications |
|---|
| Power: 500 Watts |
| Heating Element: Quartz Glass |
| Thermal Cut-Off: Yes |
| Mounting: Adhesive Suction Cups |
| Compatible Tanks: Glass, Plastic, Acrylic |
FAQ
Does the heater automatically turn off when the water reaches the set temperature?
Yes, the heater features thermal cut-off technology and will shut off when the water reaches the set temperature, then reactivates when the temperature drops.
Can this heater be used in an acrylic aquarium?
Yes, the heater is suitable for use in glass, plastic, or acrylic aquariums.
Is the quartz glass safe for fish?
The quartz glass is shatter-resistant and the heater casing prevents fish from coming into direct contact with the heating element, ensuring safety.

John Fraser –
The heater works steadily and maintains the water temperature without overheating. The suction cups stay firmly in place even in a large tank. My fish seem calm and active, and I haven’t had any issues with temperature spikes.
Joshua Wallace –
It’s easy to install and stays securely attached. The thermal cut-off works as expected—no unexpected heating. I appreciate the safety design that keeps fish away from the heating element.
Richard Gray –
Perfect for my 55-gallon tank. The temperature stays consistent, and the heater doesn’t make noise. I’ve used it for over three months with no problems.