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#1
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Temp swings for SPS question.
I just setup mt 125 not too long ago and only had 2 400 watt MH's on each end, well today i got my 3rd 400 and lumenarc mini reflectors. The temp shot up to 82 in about 1/2 an hour and is staying there. Will i be able to get away with going from 79.-82 everyday or do i need to figure out a solution to make the heat from the lights go away?
What do you guys think?
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Secretary of the Greater Iowa Reef Society. www.greateriowareefsociety.org |
#2
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IME, That's not that bad, I'd try for a 2 degree difference, but nothing bad should happen with 3 degrees.
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-Joe |
#3
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I'm going from 79 to 85 right now and have no problem, actually growth has increased a bit. As long as everything else is stable, I think you will be fine. If you run into other problems, the temp swing will only make them worse.
Bob |
#4
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Thats good to hear, i have spent waaay to much money on this tank and really don't want to have to buy a chiller. I am so lucky to have a cold basement where the sump is, i think that is the only reason my temp isn't higher.
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Secretary of the Greater Iowa Reef Society. www.greateriowareefsociety.org |
#5
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I think i am going to lower my baseline temp to 77, then when the lights come on it should only heat it up to 80. Worth a shot i guess. We'll see what happens tomorrow.
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Secretary of the Greater Iowa Reef Society. www.greateriowareefsociety.org |
#6
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Temp is a wierd one.
Basically, the more stable your temperature is, the less your corals are able to deal with temperature swings. IE, if you keep it at 79 all year, your corals will start to bleach at 84. If you swing back and forth from 77-81 on a daily basis, your corals wont start bleaching till almost 90. Theres nothing natural, or healthy about stable temperature.
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72 Bow w/6x54w T5HO,,2xMaximod1200, PS-3000 skimmer |
#7
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Before I switched controllers I let my tank go from 80-83 so if something bad happened with heat, the corals wouldn't bleach, like Rich said.
To be honest I don't think that if you start your tank at 77 it'll only raise those 4 degrees. I tried that in a tank, but the tank would still get to the same temp as before, just swing a lot more. The more stable you keep it, the better, even if the overall baseline is higher to the red zone |
#8
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on some nights, ill have an oscillating fan in my room, along with the AC in the family room. Fan hits the tank, woke up to the tank at 76.5 once or twice, sometimes if its humid, the tank will reach up to 83-84 while im out, never had problems from it
of course this is very rare, usually im 79-82 in the summer, 78-81 winter
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~Mike An escalator can never break. It can only become stairs. There would never be an "Escalator Temporarily Out of Order" sign, only "Escalator Temporarily Stairs. Sorry for the Convenience." |
#9
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Cool thanks for the help guys.
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Secretary of the Greater Iowa Reef Society. www.greateriowareefsociety.org |
#10
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My tank swings between 79 and 83 during the summer. During the winter between 78 and 81.
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Beware the light at the end of the tunnel. Sometimes it's a train. |
#11
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Do you have a back-up plan, ie fans, controller to shut off lights if tank reaches "x" degrees, chiller, AC unit?
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Dave "The wind blew, the detritus flew and then they came two by two." |
#12
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waverz,
as other have point it out, that range its fine, but I really like how "JB NY" put it in another thread, you want to be a the lower end, not because its better, but because if things go wrong, you have some space to work with, good luck, sam
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Every moment is a chance for happiness. |
#13
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Quote:
The lower you run, the lower temperature your corals will bleach at.
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72 Bow w/6x54w T5HO,,2xMaximod1200, PS-3000 skimmer |
#14
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I do have an ACII, i think i will have it shut off the MH's if it gets 83.
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Secretary of the Greater Iowa Reef Society. www.greateriowareefsociety.org |
#15
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Yeah, temperature swings don't really matter much, it happens in the wild all the time. A couple things though, be mindful that as temps increase, so does the dissolved oxygen (and CO2 for that matter), so your fish may become somewhat stressed, and second, there is an upper limit, at around 91F+(33-35 C) degrees corals bleach period....
I've hit 87 a few times, no biggie... |
#16
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Quote:
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72 Bow w/6x54w T5HO,,2xMaximod1200, PS-3000 skimmer |
#17
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That's what I meant thanks for catching that... It may not be with a light bioload.
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#18
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I have been following this thread. I have the same problem swings 79-82 daily. I also have an Aquacontroller. Do you know how to set it up to turn off at say 83 without coming back on until the next day? I had my turning off at 83 but then they would come back on when it hit 82??
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#19
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Quote:
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72 Bow w/6x54w T5HO,,2xMaximod1200, PS-3000 skimmer |
#20
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Dou you have some serious research or article about that ? Regards
__________________
When you know that your time is close at hand Maybe, then you´ll begin to understand Life down here is just a strange illusion |
#21
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Here's an article from Shimek. If you want more info, read some of the stuff he cites in the article
http://www.reefland.com/rho/1105/reefc7.php
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72 Bow w/6x54w T5HO,,2xMaximod1200, PS-3000 skimmer |
#22
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For those of you who think temperature stability is natural, heres the marshall islands (29C is 85F)
and Fiji
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72 Bow w/6x54w T5HO,,2xMaximod1200, PS-3000 skimmer |
#23
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got any graphs for swings throughout the day?
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#24
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Quote:
Quote:
__________________
When you know that your time is close at hand Maybe, then you´ll begin to understand Life down here is just a strange illusion |
#25
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Quote:
Quote:
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Denedai, read the cited papers. All the info is in there. Corals produce stress responses at temperatures directly related to the temperatures they are normally exposed to. Bleaching is a stress response.
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72 Bow w/6x54w T5HO,,2xMaximod1200, PS-3000 skimmer |
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