Lifegard Aquatics 50 Watt Adjustable Quartz Glass Aquarium Heater
The Lifegard Aquatics 50 Watt Adjustable Quartz Glass Aquarium Heater is a submersible heater safe for both freshwater and saltwater tanks from 10 to 20 gallons.
Features
- Adjustable from 68-88 F
- Length: 9.05 inches
- 50 Watts. For aquariums from 10 to 20 gallons (assuming the temp needs be adjusted no more than 10 degrees)
- UL Listed
- Quartz glass tube with bi-metal construction
- LED power light (red in heating mode, green when temperature is achieved, purple when outside of water)
- Thermal protection. The heater will automatically shut off if removed from water.
- Rubber suction cup for secure placement
| Specification | Detail |
|---|---|
| Heater Type | Submersible |
| Power | 50 Watts |
| Temperature Range | 68°F to 88°F |
| Water Capacity | 10 to 20 gallons |
| Construction | Quartz glass with bi-metal |
| Light Indicator | Red (heating), Green (stable), Purple (out of water) |
| Safety Feature | Thermal protection and automatic shut-off when removed from water |
FAQ
Can this heater be used in saltwater tanks?
Yes, this heater is safe for both freshwater and saltwater tanks.
What is the maximum temperature it can maintain?
The heater can maintain a temperature up to 88°F.
Does it have a safety feature to prevent overheating?
Yes, it has thermal protection that automatically shuts off if the heater is removed from water.

Jane Walker –
This heater works well in my 15-gallon freshwater tank. The temperature stays steady and the LED light is easy to monitor. It’s simple to install with the suction cup and stays in place even when the tank is moved.
Joanne Walsh –
I’ve used it for a few months now and it keeps the water temperature consistent. The red light shows when it’s heating, and green when stable. It’s reliable and doesn’t overheat.
Mary Kelly –
Great for a small tank. The quartz glass is durable and the temperature control is smooth. I adjusted it to 78°F and it maintained that perfectly.