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Old 01-03-2010, 02:22 AM   #1
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Need 2 heaters?

My 75g fowlr tank has a marineland stealth 250w heater. I have the setting on 80 deg, but the tank has not went above 76 deg, should I get another one of these to help or would it be too much heating ability for the tank? Also the tank has been running for a week.
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Old 01-03-2010, 02:25 AM   #2
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maybe. where is the heater located and what temp is the room? also how are you testing the temp of the water?

i tend to run 2 heaters in my tanks. this way if one fails there still one in there going.
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Old 01-03-2010, 02:55 AM   #3
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the heater is horizantally situated in the center of the tank
the room is about 75deg +/- 2
i am using 2 glass thermometers placed at either end of the tank
both have a reading of 76 deg
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Old 01-03-2010, 02:58 AM   #4
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how close is it to the intake or output? does it have any flow going over it to move the heated water around the tank?
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Old 01-03-2010, 03:17 AM   #5
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about 4 inches to the right is the output of the filter and about 4 inches to the left is the intake for the skimmer.

It's vertically positioned not horizontal sorry
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Old 01-03-2010, 03:22 AM   #6
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if you can i would switch it to horizontally and move it one way or another so its closer to one of the intakes. that is unless you have power head going close to it. i would also unplug it for 30 mins let the internal temp controller reset. if it still doesnt heat up turn the temp up. you could also put some cold water in a smaller container and check to make sure its really working.
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Old 01-03-2010, 03:29 AM   #7
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it's working, I can put my hand on it and it is hot
I don't know if it makes much difference but the top is a piece of eggcrate I cut so maybe there is a lot of heat escaping and the heater cannot catch up
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Old 01-03-2010, 03:32 AM   #8
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I have 2 heaters in my 75, and it works out great! One is rated for 50G, and one is rated for 30G. I have them on each end of the tank.
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Old 01-03-2010, 03:48 AM   #9
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I'm leaning towards another one, the one I have is rated for a 75 gallon(250 watts) should I get one about half the size or get one the same size, if I place them on either end of the tank there will be flow to push the heated water around
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Old 01-03-2010, 04:16 AM   #10
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even so it should be able to raise the temp more then 1 degree. i would first move the heater to a better location. a lid would also help keep a lot of heat in.
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