cooling down a tank - The Planted Tank Forum
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post #1 of 36 (permalink) Old 04-12-2008, 09:44 PM Thread Starter
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cooling down a tank

ok...ive searched forever and havent been able to find any threads about how to cool down a tank. its almost summer...atleast its starting to get hot so i was just trying to prepare for the wicked heat...do you guys ahve any diy creations to keep your tank cool besides running the ac in the house all day???...all ideas are greatly appreciated...thanks

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post #2 of 36 (permalink) Old 04-12-2008, 10:28 PM
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Try searching again, there are plenty of threads dedicated to this. Just a few to mention:
-fan to blow across the surface (can buy a clip on fan specifically designed for this, use a regular portable fan, or use PC fans)
-freeze a bag of ice or something to that affect and put it in the water
-buy a chiller, or possibly make one DIY (I don't really think a DIY one is efficient enough)
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post #3 of 36 (permalink) Old 04-13-2008, 12:29 AM
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Your best bet is to go to a reef / SW forum for water cooling information. They have more experience with different kinds of chillers / fans / DIY contraptions.

Also look into SW section on online store as they usually have water-cooling devices.

You can also blow air with a fan across the water surface to reduce the water temperature, but that's not very effective (as you would need to top off more frequently).
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post #4 of 36 (permalink) Old 04-13-2008, 12:58 AM
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Run the water through a heatsink of some sort and blow air through it? Crazy idea lol

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post #5 of 36 (permalink) Old 04-13-2008, 02:03 AM
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Quote:
Originally Posted by tropicalfish View Post
Run the water through a heatsink of some sort and blow air through it? Crazy idea lol
tropicalfish -


It actually isn't that crazy. I think that would be a small version of an evaporative cooler. Reefers use chillers to bring their temps down and they work fine. If you wanted to set up something to be more effective, you could set up an evaporative cooler / chiller closed loop system. Basically you would pump water through a fan cooled heat sink as you suggested with water running over it (contained to the heatsink only). From there you would pump the water to a chiller where it wouldn't be as warm (more effectively cooled prior to entering the chiller).

It would probably be overkill since most reef chillers do the job sufficiently, but it could be done. This is the process used for industrial applications such as cooling a datacenter.

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post #6 of 36 (permalink) Old 04-13-2008, 03:06 AM
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I use a 4 fan cooler that I clip on to the back of my tank. I believe it is meant for a larger tank then the 38g I have it on. It lowers my tank temps by 7 degrees. I used it for breeding endlers when I needed to keep my temps lower then 75f during the summer.

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post #7 of 36 (permalink) Old 04-13-2008, 04:14 AM Thread Starter
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thanks for the ideas!

G-mont all the way!

55 gal planted, 10 gallon electric yellow cichlid fry tank (gone), 18 gal electric yellow cichlid mouth brooder holding tank (gone), and soon to be a 55 gallon pimpin discus tank (workin on it)!

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post #8 of 36 (permalink) Old 04-13-2008, 10:38 PM
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How hot are we talking? I live in SC where the summer temps have tendency to exceed 110 degrees during the hottest days. Aside from that my room is at the other end of the house from the AC. I remove my heaters during the summer and the average temperature in the tanks hovers around 80-82 degrees, sometimes up to 86 on the hottest days... You could also make a hood/canopy/lid out of eggcrate material and then overlay that with craft mesh (to make sure no jumpers get through the holes) and that would allow the water to be in more contact with air, although you would have to replenish the water more often...

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post #9 of 36 (permalink) Old 04-24-2008, 05:20 AM
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i saw a guy that ran coils of tubing from his pump into a mini fridge that he had and it worked
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post #10 of 36 (permalink) Old 04-24-2008, 01:05 PM
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Yeah I was going to say the same thing but, just pick up a mini fridge from a yard sale or something.
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post #11 of 36 (permalink) Old 04-24-2008, 03:38 PM
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Right now is the time to look for a small frig! College students will be moving out and some of them just throw them on a curb or you can buy them dirt cheap. You can also check your local craigslist too.
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post #12 of 36 (permalink) Old 04-24-2008, 04:01 PM
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i always just used the fans and ice. i fill up powerade bottles with tank wanter and freeze them.
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post #13 of 36 (permalink) Old 04-24-2008, 04:03 PM
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i use this

http://www.walmart.com/catalog/produ...uct_id=9219112



i have it sit on top of my hood and when it gets to hot i just set the fan to low and the temp starts dropping.
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post #14 of 36 (permalink) Old 04-24-2008, 10:33 PM
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Adding on to my other post, to reduce evap, would finding a large enough computer water cooling radiator made of aluminum and pumping water through it, work?

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post #15 of 36 (permalink) Old 04-24-2008, 10:39 PM
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in the computer cooler the temp is in the 100f+ (35c+) i duno if it would be optimum to use as a tank cooler.
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