Tank Temp??

[TroyPham]

What is the coolest you should run a reef tank with a +-1 degree swing?

I have a chance to demo one of those peltier chillers that was at this years MACNA. it will hold tank temp. at what ever level you set it with a 1 degree swing up/down.

my tank temp is now at 79.1 day(with 4 cpu fans) and 79.5-.7 night with fans off.

i know that people get better color,growth, and health out of there tanks with cooler temps.

but what is the lowest i can run? is 70 the lowest? what or 72?

i know 79 is good. and 77 is better, but is it ok to run it in the lower 70's?

i'm evaping about 1.5 gallons a day with the 4 fans. in a total water volume of 120g. but i'd like to do away with the 4 fans and get the tank cooler with less noise.

current lighting and equipment are:

250wtt se 10k mag.ballast
2-75wt vho's
2-2600 seio's with seio controller
1 blueline hd40.

want to move the mh light to a 400wt 10k

[seamonkey2]

I keep mine at 76

Jose

[hobogato]

i keep mine at 79-82 :o

[JimD]

i keep mine at 79-82 :o

Me too...

[jc]

My tank is 82 at night up to 84 in the day. Everything seems to be growing fine.

[abe77901]

I keep mine at 76 +/- 1%

[Enigma13]

I keep mine at 78 +/- 1 degree during the warmer months. And I go down one degree during the cooler months. It is amazing how much more time the chiller will run in the summer for that 1 degree.

I do not think you would want to go much lower than 76 for a reef tank. Essentially the best case scenario is to come as close as possible to replicating the inhabitants' natural environments. Because most fish and corals are tropical, rarely are they found in waters cooler than 76 degrees. (There are exceptions). Low 70s would be great for a biotype tank, but not the regular reef tanks that most people keep.

[RNall]

There are far too many variables to consider but I run mine at 78/79 and have great growth. I think that has more to do with the the 4-6 turkey basters full of food I feed a day though....

[acrofreak]

What is the coolest you should run a reef tank with a +-1 degree swing?

I have a chance to demo one of those peltier chillers that was at this years MACNA. it will hold tank temp. at what ever level you set it with a 1 degree swing up/down.

my tank temp is now at 79.1 day(with 4 cpu fans) and 79.5-.7 night with fans off.

i know that people get better color,growth, and health out of there tanks with cooler temps.

but what is the lowest i can run? is 70 the lowest? what or 72?

i know 79 is good. and 77 is better, but is it ok to run it in the lower 70's?

i'm evaping about 1.5 gallons a day with the 4 fans. in a total water volume of 120g. but i'd like to do away with the 4 fans and get the tank cooler with less noise.

current lighting and equipment are:

250wtt se 10k mag.ballast
2-75wt vho's
2-2600 seio's with seio controller
1 blueline hd40.

want to move the mh light to a 400wt 10k
Hey TroyPham, Who handles the Peltier chiller. They run with fans don't they. Seems I read a thread on RC about them. The person who was using one says he loved it. Quiet, less power consumption and was able to controll his temp easily. He claimed it worked as well or better in his opinion that the chiller he had. Would like to look into these.

Thanks

[Ping]

I would set the chiller at 77. From everything I have read, the optimum temp for our systems is 76-78. Temps in the tropics are fairly steady, and that is the most important factor. IMO I would not want a system colder than 76 for very long. Just my opinion.

[matt]

I don't know where you heard that 77 is "better" than 79 for a reef tank, but I sincerely doubt that it's true. I believe that the average global reef temp is around 80, and remember that most of the south pacific shallow reefs where our corals originally come from are on the warm side. You're pretty close to the ideal reef temp right now, if anything a little on the cool side.

[Ross]

I went to Jamaica, Grand Caymen, and Cozumel this summer to dive and the temp was 85 at all 3 places, even down to 100ft.

[TroyPham]

What is the coolest you should run a reef tank with a +-1 degree swing?

I have a chance to demo one of those peltier chillers that was at this years MACNA. it will hold tank temp. at what ever level you set it with a 1 degree swing up/down.

my tank temp is now at 79.1 day(with 4 cpu fans) and 79.5-.7 night with fans off.

i know that people get better color,growth, and health out of there tanks with cooler temps.

but what is the lowest i can run? is 70 the lowest? what or 72?

i know 79 is good. and 77 is better, but is it ok to run it in the lower 70's?

i'm evaping about 1.5 gallons a day with the 4 fans. in a total water volume of 120g. but i'd like to do away with the 4 fans and get the tank cooler with less noise.

current lighting and equipment are:

250wtt se 10k mag.ballast
2-75wt vho's
2-2600 seio's with seio controller
1 blueline hd40.

want to move the mh light to a 400wt 10k
Hey TroyPham, Who handles the Peltier chiller. They run with fans don't they. Seems I read a thread on RC about them. The person who was using one says he loved it. Quiet, less power consumption and was able to controll his temp easily. He claimed it worked as well or better in his opinion that the chiller he had. Would like to look into these.

Thanks

Aquarium specialty and his business partner are the only importers/distributer for them. The guy on RC that is using one said he can run his tank at 78 with half the energy it took him to run his 3/4hp chiller in AZ summers.

I'm going to Demo one in the next month or so.

[Shark_Bait]

The thing with peltiers is that one side of them gets very hot. So the better you can cool the hot side the better the cold side will work. I have thought about putting one of these in my sump (they are cheap and easy to build) but the problem was the cooloing. Alot of "hardcore" computer guys use peltiers to cool thier CPUs then water cool the hot side.

Troy when you get this thing in let me know. Would love to take a look at it.

OH and my tank goes from 78 to 80 with no cooling but a fan across the water surface

[ReefOne]

Troy..you lucky little turd!!! (j/k) I'm gonna have to come up to H-town to check it out. I've had so many problems with my tank lately. I've lost like 70% or all my sps. I dont know if it's the temp change but it looks like i'll be getting a chiller once again. I'm running 78-82, sometime 80 w/out the halides even being on. I need to hurry and move the tank over to my new house.