I have one 300 watt heater on my 125 gal. it works fine. I also have one 200 watt heater on my 75 gal and it's working fine. I really don't think you need two 300 watt heaters on a 135 gal.
How do i get my heaters to synchronize?
- Thread starter Bennlfer
- Start date
So....in larger tanks your going to see a difference in temperatures through out the tank. It's not a big deal. Have you ever swam in a lake? Sometimes you get into a warm spot or a really cold spot, this is normal. If you have two heaters in your tank, one at each end, it's possible for one heater to be on and the other off. There's so many variables. Heaters may not be calibrated exactly the same. Heater settings may not be exactly at the same temps. Water flow, depth, lighting, all impact temps.
I set up one heater to the temperature I want and then set one or two heaters to a temperature a few degrees below the desired temp. That way I have a back up for cold nights and a way to gauge heater performance.
I set up one heater to the temperature I want and then set one or two heaters to a temperature a few degrees below the desired temp. That way I have a back up for cold nights and a way to gauge heater performance.
nc-nutcase,
20x turnover, liters and liters of bio-media, and mega-watts of heater are symptoms of our society of excess; only in America.
I have 2-350 watt titanium heaters on my 180 and the water stays at 80 degrees. The heaters don't come on too much or at least they don't stay on too long 
