Too HOT!!

Unplug the heaters, the pumps should be generating enough heat to maintain 78F.

A chiller would also help.

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A couple things, bring heaters to around 76, and also dont rack up your heatin bill by heatin your house when your not home only to turn it down when you are at home. Doesnt make sense. If you think you need it, you could also get a chiller


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Skittle said:

A couple things, bring heaters to around 76, and also dont rack up your heatin bill by heatin your house when your not home only to turn it down when you are at home. Doesnt make sense. If you think you need it, you could also get a chiller


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I don't think he is heating his house in Florida in July. Just say'n

Running two Mag Drive 18s submerged is the equivalent of running a 300W heater, 24/7 (click on the following link and scroll down about halfway to "Q: How much heat does my submersible pump add to the aquarium?" for an interesting read: http://www.beananimal.com/articles/thermodynamics-for-the-aquarist.aspx).

Running them externally will help reduce heat transfer to the water. Another option is to get more efficient pumps. Swapping out the Mag 18s that consume 150 watts each for two Laguna Max Flo 2000s which consume only 80 watts each will cut your power consumption almost in half, reduce energy/heat into your system and will give you more flow (you can always valve the pump down if that is not desired).

It's been 100F+ for the past few days where I live and my tank is up to 84F (heaters set to 78F). Luckily the species I keep don't mind the warmer temps.

As you saw, it's amazing how much fans can help bring down the temp. Before going out and buying an expensive chiller, I would consider buying a Temperature controller that will kick your fans on when the water gets too warm and turn them off once your set point is achieved. Plug your fans into the controller and when it exceeds your set point by 1F, the controller will open the circuit and turn the fans on until you set point is achieved. Using a controller you won't have the issue of huge temperature swings by leaving your fans on for hours until you are able to check on the tank's temp. You can get a prewired controller from Jehmco for $77: http://www.jehmco.com/html/temperature_controller.html I would definitely go this route and see how it works versus buying an expensive chiller. If it ends up not working, you can always use the controller for your heaters.

Good luck.

aldiaz33 said:

As you saw, it's amazing how much fans can help bring down the temp. Before going out and buying an expensive chiller, I would consider buying a Temperature controller that will kick your fans on when the water gets too warm and turn them off once your set point is achieved. Plug your fans into the controller and when it exceeds your set point by 1F, the controller will open the circuit and turn the fans on until you set point is achieved. Using a controller you won't have the issue of huge temperature swings by leaving your fans on for hours until you are able to check on the tank's temp. You can get a prewired controller from Jehmco for $77: http://www.jehmco.com/html/temperature_controller.html I would definitely go this route and see how it works versus buying an expensive chiller. If it ends up not working, you can always use the controller for your heaters.

Good luck.

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^this exactly