Lifegard Aquatics 25 Watt Adjustable Quartz Glass Aquarium Heater
The Lifegard Aquatics 25 Watt Adjustable Quartz Glass Aquarium Heater is a submersible heater safe for both freshwater and saltwater tanks up to 10 gallons.
Features
- Adjustable from 68-88 F
- Length: 9.05 inches
- 25 Watts. For aquariums up to 10 gallons (assuming the temperature 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 holders included
| Specification | Value |
|---|---|
| Heater Type | Submersible |
| Power | 25 Watts |
| Temperature Range | 68°F to 88°F |
| Max Tank Size | 10 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
What is the temperature range of this heater?
The heater can be adjusted between 68°F and 88°F.
Is this heater suitable for saltwater tanks?
Yes, this heater is safe for both freshwater and saltwater tanks up to 10 gallons.
Does the heater have a safety feature to prevent overheating?
Yes, it has thermal protection and will automatically shut off if removed from water.

Brandon Bailey –
I’ve used this heater in my 8-gallon freshwater tank for three months. It maintains the temperature consistently. The LED light is easy to see and helps me know when it’s working or when the temperature is stable. The rubber suction cup holds well and the heater is quiet. No issues so far.
Boris Thomson –
Works well for my 10-gallon tank. I adjusted it to 78°F and it stayed steady. The red light shows when it’s heating, and green when it’s at the set temperature. I appreciate the safety feature — it shuts off if I accidentally pull it out of the water.
Sam Wright –
Great value for the price. Simple to install and the quartz glass is durable. I’ve had it for two months and it’s still performing well. The temperature control is smooth and the light indicators are helpful for monitoring.