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Old 08-12-2012, 08:21 PM   #1
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Hot tank

I have a metal halide light on my tank with no legs right now. My problem is that I leave my light on for 6 hrs at a time and by the time I turn my light off the temp. is 85-87. My light has one fan that I turn on an hour before the lights kick on and runs for 2 hrs after the light goes off.
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Old 08-12-2012, 08:48 PM   #2
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I have a metal halide light on my tank with no legs right now. My problem is that I leave my light on for 6 hrs at a time and by the time I turn my light off the temp. is 85-87. My light has one fan that I turn on an hour before the lights kick on and runs for 2 hrs after the light goes off.
Fans can help but ultimately it sounds like you need a chiller or a/c. If a window a/c unit would work in the room where your tank is I would go with that. Keep yourself AND your tank cool. We have had upper 90's to near 100F temps this summer and never had a problem with a/c and fans.
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Old 08-12-2012, 09:33 PM   #3
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Before trying a chiller, vent your hood as much as possible, and if you have room, add a 6 inch clip on fan pointed at the water, this will encourage evaporation which will cool the tank. I can keep my 20L at 76 to 78 degrees with one clip on fan and I have a 250w MH.
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Old 08-13-2012, 08:16 AM   #4
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what size tank do you have? I run 2 x 250 MH four inches off my water on my 125 and have just 1 clip on fan that keeps it 78.5 to 79. Have my fan and heaters on a Ranco temp controller
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Old 08-13-2012, 08:36 AM   #5
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what size tank do you have? I run 2 x 250 MH four inches off my water on my 125 and have just 1 clip on fan that keeps it 78.5 to 79. Have my fan and heaters on a Ranco temp controller
How high above aquarium is your light?
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Old 08-13-2012, 03:35 PM   #6
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The light has no legs right now it's just sitting on top of the tank
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Old 08-13-2012, 03:42 PM   #7
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The light has no legs right now it's just sitting on top of the tank
Id definately raise it up a lil airspace between the light and water itll drop a few degrees easily if not more that way and also keep your light free of excess salt
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Old 08-13-2012, 09:35 PM   #8
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Thanks for the help
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Old 08-13-2012, 10:48 PM   #9
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crack the lid and put a fan blowing in the back of tank
blow out the heat
I got a big improvement getting heat out of tank everything seems happier and not cooking
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Old 08-13-2012, 11:02 PM   #10
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crack the lid and put a fan blowing in the back of tank
blow out the heat
I got a big improvement getting heat out of tank everything seems happier and not cooking
You have a lid over the tank??
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