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#1
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![]() The major difference is actually a result from the volume, the 45 gallon cools quicker and easier because the total volume of water is lower. The 150 gallon will get most of the heat from the lighting but it takes more effort to extract that heat because of the higher volume. Try maintaining your 150 temp at 80F instead of 78F. This will increase the temperature gradient of the tank and the room and reduce the temperature gradient of the tank and the lighting, this will result in a lower overall temperature swing.
The pumps are adding little heat, experiment if you like by keeping the lights off one day and monitoring the temperature. Also try turning off one of the pumps in a separate experiment if possible. |
#2
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![]() What is the ambient temperature in your house where the tanks are?
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"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour |
#3
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![]() can't turn off the pumps, they are only means of flow. One for closed loop, other for sump.
Russell, House temp is 71 day, 65 night. It's not the temp swings i'm really worried about, it's the evaporation. I know theres gona be evap, but 1-1.5g a day? That's alot of water into my air, and walls, carpets etc.
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Dan Pesonen Umm, a tank or 5 |
#4
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![]() Quote:
Only way to stop evaporation is by using lids. To prevent moisture build up in the house you can either vent out the humid air or use a dehumidifier. If it's that much of a concern and you can't afford the fixes you need to rethink your tanks. You could downsize or change the larger one into a fish only with lower lighting and lids. Last edited by sphelps; 10-27-2009 at 05:03 PM. |
#5
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![]() Quote:
Steve
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![]() Some strive to be perfect.... I just strive. |
#6
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![]() I agree, it most likely the lights adding the heat not the pumps. My 135 runs much warmer with the MH lights on it than my 50 with just CF light. The 50 needs heaters on to keep the temp up in spite of having all submersed pumps and powerheads. The 135 needs fans to keep the temp down once the lights come on.
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I retired and got a fixed income but it's broke. Ed _______________________________________ 50 gallon FOWLR, 10 gallon sump. 130 gallon reef, 20 gallon sump, 10 gallon refugium. 10 gallon quarantine. 60 gallon winter tank for pond fish. 300 gallon pond with waterfall. |