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Old 11-10-2013, 02:11 PM   #1
MarkM
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Water Temp


I have two tanks and a third sometimes as a QT. House temp is now falling to about 60 F evenings so aquarium heaters and water temps are more of a concern. I bought 4 ViaAqua heaters on-line. Two x 300w for my 120G and one 200w for my 50G and one 100W for my 10G QT. These units do not have the auto shut off and I managed to kill one during a water change and replaced it.

I have three of the inexpensive floating thermometers and two CoralLife LCD thermometers. I bought a human electronic thermometer and have compared and all the readings are different, but within about 4 degrees of each other. I am assuming the human thermometer is most accurate as I tried that on myself and it reads as it should. I have been running like this for about a month.

I set the heaters up to maintain 78 degrees.

I am now seeing that all of the heaters are drifting and that my 50G is up to 81 degrees and the 120 up to 82 degrees. One of the 300W units will not turn off at any setting unless you unplug it and let it cool down for about a half hour.

It appears that I need to replace all of my heaters with a more reliable brand. What brand do you have good performance with?
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Old 11-10-2013, 02:34 PM   #2
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My fluval E heater has proven to be reliable but it has trouble keeping up If temps drop rapidly. It seems to cycle on/off even when the tank is 5 below set temp. The built in thermometer seems accurate when compared to my digital and mercury one

I have also heard good things about jager heaters

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Old 11-10-2013, 04:02 PM   #3
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You could try a heater controller. I think Finnex is supposed to make a decent one that can handle up to 300 watts.

Or go old school and use a timer.
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Old 11-10-2013, 05:34 PM   #4
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A heater controller is definitely a good way to go. You can use it with any heater, and it'll just shut the power off to the heater when it reaches its target range. Also, I just began using a hydor heater about 6 months ago and the temp in my 125g has never been more stable.
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Old 11-10-2013, 08:19 PM   #5
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Quote:
Originally Posted by exv152 View Post
A heater controller is definitely a good way to go. You can use it with any heater, and it'll just shut the power off to the heater when it reaches its target range. Also, I just began using a hydor heater about 6 months ago and the temp in my 125g has never been more stable.
I looked at Hydor and like most mfgs there are several models. Which are you using in your 125g?
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Old 11-11-2013, 12:45 AM   #6
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Quote:
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I looked at Hydor and like most mfgs there are several models. Which are you using in your 125g?
I'm using the 300w inline hydor, and a 300w eheim/jager on the other side of the tank. But once I get around to it, I'll be getting a second hydor. The temp in my 125g has never been so stable. Plus I have it hooked up to a ranco temp controller. It's preset, the controller will cut off the power to the heater if the temp hits 86F.
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Old 11-11-2013, 01:49 AM   #7
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I use aqueon pros. There all plastic and are accurate. Never had a problem with them.
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Old 11-11-2013, 11:16 AM   #8
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Quote:
Originally Posted by exv152 View Post
I'm using the 300w inline hydor, and a 300w eheim/jager on the other side of the tank. But once I get around to it, I'll be getting a second hydor. The temp in my 125g has never been so stable. Plus I have it hooked up to a ranco temp controller. It's preset, the controller will cut off the power to the heater if the temp hits 86F.
Thanks, I like the idea of an in-line heater like the Hydor as I like to keep additional mess out of the tank. But the size of the inlet/outlet on the Hydor won't work with my FX6 filter. Guess I could build distribution set-up and use two heaters, but I want to keep things simple.

I'll look at the Jager again.
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Old 11-12-2013, 02:55 AM   #9
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Quote:
Originally Posted by MarkM View Post
Thanks, I like the idea of an in-line heater like the Hydor as I like to keep additional mess out of the tank. But the size of the inlet/outlet on the Hydor won't work with my FX6 filter. Guess I could build distribution set-up and use two heaters, but I want to keep things simple.

I'll look at the Jager again.
Try a Heater Module for 12" up to 22 long heaters. Accepts 3/4 & 1 Diam. heating tubes.
http://www.jehmco.com/html/heaters.html#Heater%20Module
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Old 11-12-2013, 04:16 AM   #10
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I had the same issue with the hose sizes not matching the hydor, and a couple of these and some short piece of hosing solved that.
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