well I just fired up the new tank. no lights until next week. anyhow. I have my 250 watt heater in the return chamber of my octopus 800s. It is sticking a good 2" out of the water and the dial is on top. Is this safe? Does the heater need to be totally submerged? It is not plugged in yet.
Also if I put a carbon sock next to it in the bottom of the chamber and they are touching, is this a fire hazard?
Also if I put a carbon sock next to it in the bottom of the chamber and they are touching, is this a fire hazard?