Water temperature gets up to 28 degree

[Andylam]

What will happen?
......while everyone has been saying not to go any higher than 27.5 degree for a SPS tank

Thanks :bounce3::bounce3:

 

[HurricaneSystem]

I wouldn't think that should hurt them a bit. 82 isn't that high for a reef tank.

 

[Andylam]

So whats the highest temp that SPS corals can tolerate?

 

[reef kid96]

as long as it doesn't swing too much your good

 

[HurricaneSystem]

If you are asking if you can get away with not running your air conditioner when it is 90 degrees outside, plus your MH system, then no. Unless you have a chiller on the tank, which it doesn't sound like you do.

 

[Allmost]

I had my SPS tank at 84 and things grew like crazy/ I still let it climb there in summer.

over 86 I would get worried.

and lower than 70 on other side.

 

[Andylam]

Thanks for all you replies folks.

It is spring in Hong Kong where I am, water temp starts raising to 82 but everything seems just fine. If 82 is really fine then I can save fair a bit on my bills and it's good for environment as well.....! plus my chiller is internal that generates lots of heat which my girlfriend and my two cats arent happy...

But on the other hand I have tons of SPS I don't really want to risk it....

Any thoughts?

 

[Allmost]

optimal temp for SPS growth is 84.

only problem is, at 84, you dont have much room to swing UP, as they would be stressed at anything over 86 ...

so 82 seems fine. u have a couple of degrees each direction before u go into red zone.


set ure controller to turn off halides if u use them at 84 ... in case it gets too hot.

IMO, stability is important, some dont think it is ....

 

[dzhuo]

only problem is, at 84, you dont have much room to swing UP, as they would be stressed at anything over 86 ...

That's not true. The stress point is not genially set, it's a adapted and acclimated to. Most Indo-Pacific corals (where majority of the animals we keep are from) average about 82F during the summer and 78F during the winter. It's not uncommon to find corals in the low 90F and they have not shown to induct any thermal stress response. What we do know, however, is corals will start to stress roughly 3 to 4 degree above or below their acclimated temperature range. For example, if you keep your tank 78F constantly, they you should start to see corals stress below 75F or above 81F. If you keep your tank from 78F to 82F, the coral will response to stress below 75F and above 85F, etc. Within this range, you can fluctuate as much as want. Stability within the acclimated range is not important. The optimal temperature for calcification is observed to be roughly 2 to 3 degree below the maximum acclimated range. You stated that this number is 84F which is pretty accurate.

IMO, stability is important, some dont think it is ....

I am one of the person who don't think temperature stability is important. Fluctuation within the acclimated temperature range has never been observed to be stressful to corals either in the lab or in the wild. There is no study or experiment which has shown temperature fluctuation is stressful either. In the contrast, there are lots data which show temperature fluctuation are important for healthier corals (less suspect to bleaching event, for example).

 

[dzhuo]

Any thoughts?

82F is nothing to worry about.

 

[Allmost]

That's not true. The stress point is not genially set, it's a adapted and acclimated to. Most Indo-Pacific corals (where majority of the animals we keep are from) average about 82F during the summer and 78F during the winter. It's not uncommon to find corals in the low 90F and they have not shown to induct any thermal stress response. What we do know, however, is corals will start to stress roughly 3 to 4 degree above or below their acclimated temperature range. For example, if you keep your tank 78F constantly, they you should start to see corals stress below 75F or above 81F. If you keep your tank from 78F to 82F, the coral will response to stress below 75F and above 85F, etc. Within this range, you can fluctuate as much as want. Stability within the acclimated range is not important. The optimal temperature for calcification is observed to be roughly 2 to 3 degree below the maximum acclimated range. You stated that this number is 84F which is pretty accurate.

lol I love ure posts, you start off saying my post is NOT TRUE, and then say the same thing I say and agree with my point .... ok, whatever you say lol



I said 84 = optimal, 4-5 degrees above it = too hot .... ure saying the same ... so yea ... no Idea what it is Im wrong about ...
we can both agree that boiling corals is wrong though lol

I am one of the person who don't think temperature stability is important. Fluctuation within the acclimated temperature range has never been observed to be stressful to corals either in the lab or in the wild. There is no study or experiment which has shown temperature fluctuation is stressful either. In the contrast, there are lots data which show temperature fluctuation are important for healthier corals (less suspect to bleaching event, for example).

I said my opinion and my opinion is based on my observation of my corals. my corals look the best, and grow the most stable with less swing[about 4 degrees through day].
on days that it gets hot [ÃŽ am in Canada, so we are used to cold] my corals show stress sign on their tissue.

I do not disgree with your opinion though

 

[dzhuo]

... so yea ... no Idea what it is Im wrong about ...

only problem is, at 84, you dont have much room to swing UP, as they would be stressed at anything over 86 ...

There is really nothing magical about 86F. If you keep your tank constant at 80F, for example, the corals will start to experience thermal stress at roughly 83F. I do think 86F is probably a reasonable upper limit for most people but it's not a hard limit at all.

we can both agree that boiling corals is wrong though lol

Well there is P. lobata which has been well documented to grow in water excessing 100F. But you are right, let's not try that.

 

[Andylam]

Thanks.

Now I guess it is time to think again what temperature to set on our chiller...
It's not only saving the bills but also helping to save our planet...