Deep Blue Heat Stik Dual Digital Heater 300 Watt
The Deep Blue Heat Stik features dual digital electronic heating technology for precise water temperature control. One LED display shows the set temperature, while the other displays the actual water temperature in real time.
A push button at the end of the unit allows you to increase the set temperature in one-degree increments. A status LED illuminates whenever the heating element is active, indicating that the heater is on.
| Specifications |
|---|
| Heating Power: 300 watts |
| Water Capacity: 75 to 90 gallons |
| Display: Dual digital LED (set and actual temperature) |
| Control: Push button for one-degree temperature increase |
| Status Indicator: LED shows when heater is active |
FAQ
Can the heater be used in saltwater aquariums?
The Deep Blue Heat Stik is designed for freshwater aquariums. Performance in saltwater environments has not been tested or verified.
How accurate is the temperature reading?
The dual digital display provides real-time readings of both set and actual temperatures. Accuracy is within standard industrial heater tolerances, typically ±1°F under normal operating conditions.
Is the heater compatible with all aquarium sizes in the 75 to 90 gallon range?
Yes, this heater is specifically designed for aquariums between 75 and 90 gallons.

Tim Metcalfe –
The heater is easy to install and the dual display makes it simple to monitor water temperature. I set it to 78°F and the actual reading stayed very close. The LED indicator is helpful to know when it’s active. Works well in my 80-gallon tank.
Abigail Burgess –
I appreciate the clear digital readouts. The temperature stays stable even during temperature fluctuations. The one-degree button is convenient for small adjustments. Slight delay when turning on, but otherwise reliable.
Una Chapman –
Great precision and simple interface. I use it in a 90-gallon tank and the actual temperature matches the set value closely. No issues with overheating or cycling. Very dependable for daily use.