For those with 200+ gallons

2 x 500W titanium heaters running off of my controller. Undersize two heaters rather than use 1 large one. Don't trust the heaters with built-in thermostats..they always fail and eventually stick on.
 
I use the fluval E series microprocessor controlled heaters. They have digital readouts, and color leds to indicate operating temp. I have 3-300 watt heaters on a 300 gallon with 150 gallon sump. The lighting adds most of the heat though.
 
Back
Top