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Axolotl tank set-ups, filters, substrate Discussions on tanks, temperature, filters, gravel, lights etc.

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Old 26th April 2009   #1
mistari
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Default Keeping water cold???

I'm wondering if I should get a chiller... do they sell chillers for a 16 gallon aquarium? I'm not home during the day to keep putting an ice block in the tank. I don't understand chillers, can someone explain? How does everyone else keep their water cold?



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Old 26th April 2009   #2
Johnny O. Farnen
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Default Re: Keeping water cold???

"Ask, and ye shall receive!"

http://www.caudata.org/cc/articles/cooling.shtml



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Old 26th April 2009   #3
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Default Re: Keeping water cold???

Another inexpensive way to keep your tank water cool is to buy 2 litre bottles of anything and fill them with water. Freeze them and keep them in your tank. You may need to rotate them around too. This way is good for the axolotls and the environment!



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Old 26th April 2009   #4
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Default Re: Keeping water cold???

Well like I said I'm not home during the day to change the ice blocks. When I look at pictures of aquarium chillers i just see this box thing and that's it. What is the thing hooked up to and how does it work?



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Old 26th April 2009   #5
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Default Re: Keeping water cold???

Sorry, I don't know anything about chillers except there pricey. But you can't really over cool the water (short from freezing the tank). I would just use bottles with frozen (TREATED, just in case) water. A couple (i used 3 but more is most likily just fine) of bottles in the morning and they should be fine until you get home. Kept in a dark room, with a fan helps too.



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Old 26th April 2009   #6
tran
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Default Re: Keeping water cold???

Chillers work with the same basic heat exchange principles as your refrigerator. The chiller "box" doesn't have a motor so it can't pump water through it. What people do is attach it to their external canister filter which has a motor. So water from the tank goes into the inlet of the filter, then the outlet of the filter goes to the inlet of the chiller, then the outlet of the chiller goes into the tank. So just put your chiller after your filter (never in front of it!) and before your tank. The chiller has a thermostat and it turns on when the temperature is 1 degree F higher than the set temperature. For some people the peace of mind the chiller brings in locations prone to heat waves is worth the price.

As far as chillers are concerned JBJ makes the best, in my opinion. The Artica series is neat-looking, relatively quiet, and chills water fast. So far my water has not been more than 1 degree higher than the set temperature (67 deg. F). They are pricey at about $500 for 1/10th HP (horsepower) new. But you can get a slighly used one on Craigslist for half that price if you are diligent at checking. Just make sure if you get a used one to run clean dechlorinated water through it with a water pump for 1-2 hours before using it on your tank. Most likely, used chillers came from a saltwater setup where their use is prominent.

If you want to know more about chillers, just do a quick and simple google search or read on saltwater forums. Many people on this forum find that the ice block method is cheap and effective so that's why they are recommending it to you.


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Originally Posted by mistari View Post
Well like I said I'm not home during the day to change the ice blocks. When I look at pictures of aquarium chillers i just see this box thing and that's it. What is the thing hooked up to and how does it work?



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Old 27th April 2009   #7
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Default Re: Keeping water cold???

Some chillers use the Peltier effect also, a thermoelectric transfer created by passing direct current through certain combinations of doped semiconductors in a ceramite sandwich. Heat is dissipated on one side of the sandwich, heat is absorbed on the other.

Like Tran says though, the best way to learn about chillers is to Google the terms.



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