My acan isn't looking so good

[Treezer8]

I've had this coral for about 6 months, It's gotten huge and was recently moved into my 70gal with everything else. My lights are around 35-40%(LED's), and my acans along with every other coral have been doing awesome.

Here's a picture of them, it started yesterday when I saw one of the heads REALLY scrunched up and I thought a hermit or something was messing with it. I get home today, and now more heads look the same way.

Parameters are still the same and look good, all other acans and corals look good.
The only think I can think of is the temperature. It's usually kept around 79.5-80, and my dad recently started putting the a/c on a "mode" where it makes it hotter when no one is home. So I get home and the temp is 82..

Also, I think they're getting a bit too much flow..But I can't seem to position them to where they don't. I see its heads move and fold back a good bit

I feed it mysis every few days with the powerheads off, and recently started giving them a little bit more. I gave it 24hrs, thinking it was nothing major, but now I'm concerned. Next water change is scheduled around the 13-14th..

 

[Treezer8]

Parameters today were the same, forgot to put them
ammonia-0
nitrite-0
nitrate-5
alkalinity-7.8
calcium-420
phosphate-0

temp-82 but working on getting it to 79-80 right now and keeping it stable

here's a pic of how they usually look

 

[FishyReef]

What is your alkalinity at? My acans shrank up horribly on me when my alk fell a good month and a half ago. Even after I corrected my alk problems, my acans took weeks to recover - they are finally puffing out again.

EDIT - Ninja'd! Okay, your alk looks fine, so not that.... Could be the temp increase. I think acans are one of those corals that is exceptionally sensitive to change, and then take awhile to recover back to normal.

 

[Treezer8]

What is your alkalinity at? My acans shrank up horribly on me when my alk fell a good month and a half ago. Even after I corrected my alk problems, my acans took weeks to recover - they are finally puffing out again.

EDIT - Ninja'd! Okay, your alk looks fine, so not that.... Could be the temp increase. I think acans are one of those corals that is exceptionally sensitive to change, and then take awhile to recover back to normal.

Yea that's the only thing I can think of! Everything else it normal, and the other acans in my tank are looking good. These orange ones are by far my oldest, but I'm going to do a water change friday or saturday and see if I can get a way to keep the temp down as well..I want it around 79-80 again

 

[FishyReef]

Try blowing a fan across the top of the water - that should help bring the temp down