Does anyone have an opinion on the best brand of heater? I am planning on running 2 heaters connected to Apex Controller for my 120g build. Looking for suggestions on wattage and reliability experience.
I wouldnt touch anything other than a Titanium heater on a controller. I run a 100w ViaAqua Titanium heater connected to my Reef Keeper Lite on my 22g nano.
Ehiem Jager on a controller. Titaniums don't offer that extra thermostat if your controller or probe fails, but you can control a controller.
I would not go too much wattage. A 1000w titanium heater can raise the temp in my 240 about 2 degrees an hour which can bake a tank overnight. A 500w heater can raise it like .5 degrees and anything out of whack has more opportunity to be caught.
I have a standard 120 and I use a pair of 300W Eheim Jagers on a Ranco dual phase. One is set just below the controller and comes on the most. The other is set like 1 degree below the controller and will come on only if needed.