Aqueon Aquatic Flat Heater 7.5 Watts
The Aqueon 7.5 Watt Flat Heater provides gentle warmth for small tropical fish in desktop aquariums up to 3 gallons. Designed for glass or acrylic tanks, this fully submersible heater is easy to install with included suction cups for mounting on the bottom or side wall.
It efficiently maintains water temperature and is ideal for small setups. Always ensure the heater is fully submerged and never operate or leave plugged in when outside of water.
| Specifications |
|---|
| Power: 7.5 Watts |
| Compatibility: Desktop aquariums up to 3 gallons |
| Material: Plastic with suction cups |
| Usage: Submersible only |
FAQ
Can this heater be used in a tank larger than 3 gallons?
No, this heater is designed for desktop aquariums up to 3 gallons. Using it in a larger tank may lead to inadequate heating or overheating.
Is the heater safe to leave plugged in when not in use?
Please contact customer service
How do I install the heater in my aquarium?
Attach the heater to the bottom or side wall using the included suction cups. Ensure it is fully submerged and positioned correctly before turning on.

Jasmine Harris –
Works well for my 2-gallon tank. The heater stays stable and keeps the water warm during cooler evenings. Easy to install with the suction cups. No issues so far.
Joe Mills –
Good for small tanks. Keeps the water at a consistent temperature. The suction cups hold well, though I had to adjust the position slightly for optimal placement.
Richard Ball –
Perfect for a desktop aquarium. Simple to set up and maintains a steady temperature. My small guppies stay active and healthy.