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06-21-2008, 01:01 PM
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#1 (permalink)
| | Fire Worm
Join Date: Jun 2008 Location: South Texas
Posts: 166
Karma: 72
 |  To Fan or not to Fan?
Hello--
The temperature on my 72 gallon tank has risen to 81 degrees. I am trying to avoid buying a chiller because I have central ac at 76 at all times. I have heard a simple 6 inch fan will work. Does anyone know where it should be placed? For instance.... in my canopy next to the current usa sundial t 5 lighting that has built in fans (say in front of it and under to blow on the surface) or in the wet dry sump portion of the filter in my closed door stand?
Any suggestions would be great ... found this fan on marinedepot.com for 21 bucks
What I'm running inside the tank is listed in my signature... there is no direct sunlight in my room but plenty of ambient lighting Sunlight Supply Air King 6 inch Clip on Fan (Saltwater Aquarium Supplies > Lighting > Accessories > Cooling Fans )
Thanks-- Ryan
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72 gallon bow front, aqua c urchin protein skimmer, wet/dry filtration, 90lbs lr, 70lb sand, 2 clown fish, yellow-head goby, yellow tang, flame angel, blue hippo, six-line wrasse, carpet anemone, cleaner shrimp, 4 mj1200's with red sea wavemaker, current sundial t5 ho lighting 216w, coralife 1/6 hp chiller | 
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06-21-2008, 01:07 PM
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#2 (permalink)
| | 3reef Moderator
Join Date: Aug 2004 Location: Wethersfield, CT Age: 39
Posts: 6,372
  
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Position the fan where it will blow across the water's surface. You can expect more evaporation with the fan running but it will keep the water cooler than it would if you were to have it blow into your sump. | |
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06-21-2008, 01:09 PM
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#3 (permalink)
| | Aiptasia Anemone
Join Date: Apr 2008 Location: Weston, Florida Age: 29
Posts: 585
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+1 on water surface. _________ 75gal hex, 2-40w T12 48", odyssea 48" 4x65w PC's w/ lunars, 50lbs LR, 80lbs LS, gold banded maroon clown, dog faced puffer, juvenile blue angel, 2 dominoes, 1-4 stripe damsel, yellow watchman gobie, lawnmower blenny, mano, purple chromis, striped grouper, mexican turbo, astrea and red foot snails, striped, red and blue legged hermit crabs, coral banded shrimp, white and purple bubble coral(very little), red and green mushrooms, orange gorgonian, candycane  Tanks, No Thanks. We Free Dive! | |
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06-21-2008, 01:11 PM
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#4 (permalink)
| | Fire Worm
Join Date: Jun 2008 Location: South Texas
Posts: 166
Karma: 72
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Do you think it's a viable option...
How much will it cool the tank in your opinion based on what's running in it as listed in my signature?
Is 81 degrees okay for the tank?
Sorry the questions... don't want anything to die
Thanks,
Ryan | |
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06-21-2008, 01:13 PM
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#5 (permalink)
| | 3reef Moderator
Join Date: Aug 2004 Location: Wethersfield, CT Age: 39
Posts: 6,372
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81 degrees is fine. Running the fan could drop your tank temp 1-2 degrees or more depending on the temperature in the house. | |
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06-21-2008, 01:14 PM
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#6 (permalink)
| | Guest
Join Date: Apr 2008 Location: Phoenix, Oregon
Posts: 205
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Quote:
Originally Posted by ryanwolf  Do you think it's a viable option...
How much will it cool the tank in your opinion based on what's running in it as listed in my signature?
Is 81 degrees okay for the tank?
Sorry the questions... don't want anything to die
Thanks,
Ryan | +2 on surfacing the fan.
It's not terribly bad to have your tank at 81 degrees, but there isn't much of a margin there for you if it decides to raise suddenly. The fan should drop your temp a few degrees. | |
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06-21-2008, 03:09 PM
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#7 (permalink)
| | Fire Worm
Join Date: Mar 2008 Location: Henderson, NV
Posts: 172
Karma: 165
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I have a 6" fan that I bought from Walgreens for $9.99 that clips on also. It drops my temp about 3 to 4 degrees in my 65 gal. For your tank (I remember your pictures) you could get two, one each side and it should help out even a little more.
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65gal 70 + #'s of live rock and thick sandbed. 2False percula clown's, 1Lawnmower blenny, 1Diamond goby. 1six line wrasse, 1 blue hippo tang 12Astrea snails, 10Nassarius snails, 1Fighing Conch, Blue Hermit Crabs. Some Corals. | |
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06-21-2008, 03:19 PM
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#8 (permalink)
| | Astrea Snail
Join Date: Jun 2008 Location: TN
Posts: 31
Karma: 98
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Is this a reef tank? if so why are you running it so cool?
Trton's wife | |
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06-27-2008, 08:11 AM
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#9 (permalink)
| | Fire Worm
Join Date: Jun 2008 Location: South Texas
Posts: 166
Karma: 72
| Fan Working Great!
A quick update on the fan.... I purchased the one linked in an earlier post this thread... after just 24 hours... the fan dropped the temp. in my 72 gallon tank from 84 to 78! It actually worked too well!!!! I never anticipated a 6 degree drop... I'm keeping an eye on the thermometer to make sure it doesn't drop any more than that... hoping it didn't stress out the fish. Now, I'll have to see whether to use the fan every other or perhaps just on Sundays... It'll be a watch and wait approach... but from my experience thus far.... a fan for my size tank is a great and much cheaper alternative to a chiller!!!! Highly recommend so far and will keep you updated on any new developments with it!
Take care,
Ryan | |
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06-27-2008, 09:39 AM
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#10 (permalink)
| | Peppermint Shrimp
Join Date: Mar 2008 Location: Urbana Age: 24
Posts: 403
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yep, cheap unlike a chiller. Would only get one of those for a large tank. _________ 75 gal, 6x54 watt ho t5, coralife super skimmer, fluval 204, ehiem ecco 45, 2 stealth heaters, 2 kolaria 1, 2 kolaria nanos, 125lbs lr, 100 lbs ls, ZOASSSS!!!!!!
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