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post #1 of 11 (permalink) Old 03-19-2006, 01:16 PM Thread Starter
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temp changes

in the morning the temp is 76 and the night is 80.is there a problem with the water temp changing like this or is it ok?
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post #2 of 11 (permalink) Old 03-19-2006, 01:20 PM
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When it's that gradual it's not going to prove to be fatal or even very uncomfortable for the fish. Do you think it's the lights that you have, or does the ambient temperature change?
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post #3 of 11 (permalink) Old 03-19-2006, 01:31 PM Thread Starter
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im pretty sure it is the lights. its not a big deal though?
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post #4 of 11 (permalink) Old 03-19-2006, 03:03 PM
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It's probably not a big deal, but if you want some consistency you can set your heater to be a stable 80 degrees, that way it will shut off when your lights are doing its job and come on at night when it is needed.

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post #5 of 11 (permalink) Old 03-19-2006, 06:15 PM
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Originally Posted by Sorenweis
It's probably not a big deal, but if you want some consistency you can set your heater to be a stable 80 degrees, that way it will shut off when your lights are doing its job and come on at night when it is needed.
I dont think that will work. If you set it at 80 the lights will more then likely raise the tank to 84. A 4 degree increase is nothing to worry about over the course of a day


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post #6 of 11 (permalink) Old 03-19-2006, 06:26 PM
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I dont think that will work. If you set it at 80 the lights will more then likely raise the tank to 84. A 4 degree increase is nothing to worry about over the course of a day

It worked for me at 82 degrees.

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post #7 of 11 (permalink) Old 03-19-2006, 06:54 PM
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Water temp in the wild is constantly changing due to clouds, rain, wind, everything.. I woudlnt see why a temp change would be a bad thing as long as its not extremly rapid.
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post #8 of 11 (permalink) Old 03-19-2006, 07:12 PM
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Originally Posted by bigstick120
I dont think that will work. If you set it at 80 the lights will more then likely raise the tank to 84. A 4 degree increase is nothing to worry about over the course of a day

How do you figure? The tank apparently reaches equilibrium at 80 degrees so the lights will not raise it more than that. It worked for me also at 79 degrees when I had been keeping it at 76.

And it is also unlikely that temp shift is going to effect anything within that bracket. If it were going much higher than that or much lower you might have an issue depending upon the species but I regularly do water changes with straight cold water to no ill effect. The water is typically 50 degrees coming out of the tap and the fish play around in it as it is coming in. They apparently like it or else they would be at the other end of the tank.
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post #9 of 11 (permalink) Old 03-19-2006, 08:53 PM
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Originally Posted by bigstick120
I dont think that will work. If you set it at 80 the lights will more then likely raise the tank to 84. A 4 degree increase is nothing to worry about over the course of a day

It works just fine for me at 80 degress.
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post #10 of 11 (permalink) Old 03-19-2006, 08:56 PM
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My tanks generally run about 80 also, but I would like to cool them down to 75ish as i am under the impression that shrimp and other plants like it slightly cooler than 80.. neh? Also I know that the warmer the water the faster the metabolism of my guppies, and thus the shorter their naturatal lifespan.
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post #11 of 11 (permalink) Old 03-19-2006, 09:49 PM
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Well, I guess I stand corrected, I was thinking that if the lights are raising the tank 4 degress at 76 y wouldnt it raise 80 to 84 but I guess the is as hot as the lights get!


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