Information about AQQA Safe and Durable Design Heater
This heater is built to last and keep your aquatic friends safe. It’s made with heat-resistant quartz glass and a PC plastic cover, featuring a double seal for enhanced protection. This construction makes it explosion-proof, shatterproof, and IP68 waterproof, providing a much safer environment for both you and your fish.
Intelligent Automatic Heating
With an external temperature controller, this heater offers an automatic constant temperature function. You can set the temperature between 59ºF- 93°F (15°C- 34°C). To easily switch between Celsius and Fahrenheit, just hold the button down for 5 seconds. The heater will automatically resume heating if the water temperature drops just 1℉ (1°C) below your set point. Plus, if there’s a power outage, it’ll remember your temperature settings when the power comes back on.
Clear Digital LED Display
The digital LED display on the front of the controller clearly shows both the current temperature and your set temperature. A constant red light indicates the heater is working, while a constant blue light means it has reached 93℉ (34℃) and stopped heating. If the heater is exposed to air or not fully submerged, you’ll see a blue light and an “E1” fault code, alerting you to the issue.
Easy Installation and Wide Application
Installing this submersible fish tank heater is quick and simple. You can place it vertically or horizontally using the adjustable hanging rack and two suction cups. Just remember to ensure the heater is completely submerged in water before turning it on and install it near a water flow area to prevent uneven heating. This versatile heater is suitable for both freshwater and saltwater aquariums.
Important Note: Before cleaning your aquarium or changing the water, always cut off the heater’s power and let it cool for 10 minutes before removing it from the tank.
Power: 100W/200W/300W
Suggest tank size: 25-35 Gallon/45-80 Gallon/ 80-95 Gallon
Temperature: 59ºF- 93 ° F (15 ° C- 34 ° C)
Cord length: 4Ft+5.9Ft
3 Color Light Modes
- White +Green Light
- Blue +Red Light
- White+Red +Green +Blue Light (Full Spectrum)
10 Types of Brightness
10%-20%-30%-40%-50%-60%-70%-80%-90%-100%
100 combinations of brightness in full spectrum mode
7/24 Sunrise Sunset Mode
Automatic cycle,In this mode, fixed the full spectrum mode and can't adjust brightness.
Independent Detachable Bracket

Heat-resistant Quartz Glass
The heating rod, made of insulated, explosion-proof quartz glass, features nickel-chromium wire for fast heating and high temperature resistanc.

Accurate Temp Control
AQQA aquarium heater has sensitive probe for precise ±1°F control, stopping at the set temp and resuming when 1°F lower for a safe aquatic environment

Memory Function
The previous settings are retained after the power is turned off. Saves the hassle of having to set it up every time you turn it on again
Easy & Adjustable Installation


Please note:
Ensure the heater is fully submerged in water, fixed horizontally or vertically in a well-flowing area, with the working light visible.
Always turn it off and let it cool completely before removing it from the water.
Avoid placing the heater in sand, as this can lead to inaccurate heating.























I love this heater because it is so simple to use and it is the second time that I have purchased one of these. One is in my aquarium and the other is actually in a 125 gallon deck pond for my Koi. It keeps the water at a consistent temperature with no issues at all, even when the outdoor temperature has dropped below 32¡ã. I highly recommend.
I bought this heater for my 150 gallon tilapia tank that I moved into the garage for the winter. We haven’t had a deep freeze yet but with temps in the 40s it’s been keeping the tank at a steady 75 degrees with no drops in temp. Would highly recommend as of now and I’ll see how long it keeps going.
I bought this heater for my 150 gallon tilapia tank that I moved into the garage for the winter. We haven’t had a deep freeze yet but with temps in the 40s it’s been keeping the tank at a steady 75 degrees with no drops in temp. Would highly recommend as of now and I’ll see how long it keeps going.
I use this heater on my 125 gal tank and it¡¯s worked wonderfully! The looks pretty sleek in the tank and is easy to hid with plants. The temperature is easy to change. The suction cups are great on it too! I¡¯ve always had an issue with that in my tank but these have held strong, even with cichlids messing with it!
I use this heater on my 125 gal tank and it¡¯s worked wonderfully! The looks pretty sleek in the tank and is easy to hid with plants. The temperature is easy to change. The suction cups are great on it too! I¡¯ve always had an issue with that in my tank but these have held strong, even with cichlids messing with it!