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01-17-2007, 02:08 PM
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#1 (permalink)
| | Astrea Snail
Join Date: Jan 2007 Location: Beirut/Lebanon
Posts: 58
Karma: 13
 |  Cant get the temp down. Do filters and pumps generate heat?
What the title says...
My temp is constantly at 84F degrees. I set the heater as low as 72F degrees and turned off the light since its night time now. Its still pretty high. Could it also be cause my room is quite warm? Its freezing outside right now.
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65 Gallon
Eheim Wet/Dry Bio Filter
Eheim Mechanical Filter
Maxi Jet 250 (for flow in the tank)
Maxi Jet 500 (to move the surface of the water)
Tunze Nano DOC Skimmer 9002
3 Fish (True Purc Clown, Naso Tang, Purple Tang)
5 pieces Live Rock (3 Mushrooms, 2 rhodactis hairy mushroom) | 
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01-17-2007, 03:11 PM
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#2 (permalink)
| | Montipora Capricornis
Join Date: Sep 2005 Location: Sydney, Australia Age: 30
Posts: 1,021
 
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i have plastic bottles filled w water and frozen , just float one in top of tank to slowly bring the temp down and yes lights and powerheads do generate a bit of heat , i only run my heater 5mths of the year as i have a stable temp of 24- 25 celsius _________ 4x24w T5ho 135ltr/35gal marine cube 15kg of liverock Mandarin Goby, Zoanthids(orange and yellow) Hammer coral , red and blue coralmorphs.  Got Questions? Need Answers?
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01-17-2007, 03:21 PM
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#3 (permalink)
| | Ritteri Anemone
Join Date: Apr 2005 Location: Naperville IL Age: 29
Posts: 621
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Technically anything that causes friction will cause heat so water moving quickly through the filter can cause heat but nothing noticeable. Now pumps can generate a ton of heat depending on how many you have and if one of them is going bad. If your at 84 check your thermometer and make sure it is never turning on. They can go bad over time as well. If that does not help get a chiller or a fan to speed up evaporation which will lower the temp. Just have top off water ready to go.
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180 Gal Reef, AquaC EV-400, 3 MH Aquamedic Oceanlight HQI's 250w 20k. Neptune AquaController III, AquaLogic Trimline Cyclone 1/3hp skimmer, 2 x hydor #4's, 2 x hydor #3's, 2 x mj1200's modded, 40 gal fuge. | |
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01-17-2007, 06:08 PM
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#4 (permalink)
| | Eyelash Blennie
Join Date: Sep 2004 Location: Lakeland, Fl
Posts: 1,294
 
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The tank is going to be at least 3-4 degrees higher than the ambient temperature of the room unless you are using a chiller or some type of evaporative cooling. As Jtreef said all the pumps and lighting adds heat and the setpoints on some heaters will drift over time...
Jim
Last edited by Diver_1298; 01-18-2007 at 01:12 PM.
Reason: Grammar
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01-18-2007, 01:49 AM
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#5 (permalink)
| | Astrea Snail
Join Date: Jan 2007 Location: Beirut/Lebanon
Posts: 58
Karma: 13
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Thanks for the responses guys. I really appreciate the advice. I have 4 built in wall heaters in my room (the kind that use hot water to radiate heat). As a result, my room is really hot. Didnt notice till i walked out to my car this morning and realized i forgot something. When i went back to my room, i had to take off my jacket immediately.
I turned off the 2 closest to the tank and turned the tank heater off as well. Im kinda scared since i did it this morning before leaving for work. Hopefully the temp wont drop too much while im gone. Ill keep you guys updated with my progress.
Last edited by Tupps11; 01-18-2007 at 05:10 AM.
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01-18-2007, 02:40 AM
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#6 (permalink)
| | 3reef Sponsor
Join Date: Jun 2005 Location: Brookfield, IL Age: 33
Posts: 334
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This is just my experience but eheims seem to generate more heat than most. _________ Your #1 Source for Fauna Marin, GHL/Profilux, ZEOvit & Hagen Products!
Specializing in Rare & Exotic Animals "Happy are those who dream dreams and are ready to pay the price to make them come true." -Leon J. Suenes | |
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01-18-2007, 05:18 AM
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#7 (permalink)
| | Astrea Snail
Join Date: Jan 2007 Location: Beirut/Lebanon
Posts: 58
Karma: 13
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Quote:
Originally Posted by Vamp75  This is just my experience but eheims seem to generate more heat than most. | Do the Eheim mechanical & wet/dry filter affect water temp? Id assume they dont since they are outside/underneath the aquarium in the cabinet. I have a small Eheim powerhead in the tank itself to stir up the water. Its suction cupped to the glass, but its pretty small. My Tunze skimmer is also submerged in the display tank but its never affected the temp before. Could all this possibly be a result of the small Eheim powerhead? 
I called home and had them check the thermometer again. Its still at around 82-84F. Thats with the room heaters off and the tank heater off as well. Crap...  | |
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01-18-2007, 11:41 AM
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#8 (permalink)
| | Gigas Clam
Join Date: Nov 2004 Location: Carpentersville, IL Age: 52
Posts: 874
Karma: 137
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As JT said, ALL pumps add heat. Yes the Eheim adds heat.
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300 Reef; 325LR, 1/2" sand bed in tank, 3" sand bed in 215 gal sump/refugium and Berliner PowerPro SS twin becket skimmer. 210 Reef; with 225 lbs of LR, 300 lb DSB, Large W/D and Jebo 520 skimmer modified to accept a becket. 90 RR FOWLR; tied into the 300's sump with a closed loop for extra circulation. 55 hospital. | |
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01-18-2007, 11:58 AM
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#9 (permalink)
| | Peppermint Shrimp
Join Date: Apr 2006 Location: CT Age: 32
Posts: 417
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Like everyone said, yes they do add heat. Evaporative cooling is very powerful. You should hook up a fan to blow across the water and help evap some. With it being winter it will work out good too since it will add a little moisture to the air.
Does the tank get any direct sunlight during the day either?
Try the fan. It should be a big help.
Good luck. | |
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01-18-2007, 03:13 PM
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#10 (permalink)
| | Astrea Snail
Join Date: Jan 2007 Location: Beirut/Lebanon
Posts: 58
Karma: 13
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Quote:
Originally Posted by JustPhish Like everyone said, yes they do add heat. Evaporative cooling is very powerful. You should hook up a fan to blow across the water and help evap some. With it being winter it will work out good too since it will add a little moisture to the air.
Does the tank get any direct sunlight during the day either?
Try the fan. It should be a big help.
Good luck. | My aquarium has a lid. I took it off and i saw an immediate difference of 2F degrees. Im gonna wait a few more hours and let you know if it drops any more. All i need is 2F degrees more. The powerhead and the heater in the tank are still off. The aquarium doesnt get any direct sunlight, but the rest of the room gets decent amounts of it. Gets kinda hot in here during the day. Ill let you guys know how it develops. Thanks again  | |
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