1. Because of the closed top design of the Fluval Edge, a slightly lower water temperate is recommended as it will assist in retaining oxygen in the water. Follow the setup instruction of your heaters manufacturer and set the temperature to 23°C.
2. Insert the heater into the heater mounting hole on the left hand side (when viewed with the lighting arm pointing towards you), as shown in Figure 10. 3. Loop the heater power cable over the back left hand side of the Marine-Pac 3.
3. Loop the heater power cable over the back left hand side of the Marine-Pac 3.
WARNING: The manufacturer recommends that you use a fully submersible heater. Please note where the minimum water line is on your heater. As of 2015 with the updated inlet/outlet the heater should be installed in the the middle Inlet/outlet/heater/probe plate instead NOT the top plate due to the lower water levels.