Symphyllia is receding

[Centerline]

Hi, I have a rather large Symphyllia that Ive had for about a month now that is starting to recede. Wherever the tissue is pulling back from the coral skeleton you can see where there is a red discoloration in the skeleton. No idea what it is though its the same color as cyno.

Everything else in the tank is doing fine. Mixed reef with multiple several LPS, Zoa, clams, a few sps, lk12 smallish fish.

P04 - .4
N03 - 15
Cal - 400
Alk - 8.5ish
Mag - 1300
Ph - 8-8.3
RODI - 0 ppm
Salinity - 1.026
Temp - 78-80
Light duration - 11 hrs
Lighting - AI Hydra 52 HD running at 60%
PAR at Symphyllia - 170

Any help would be appreciated.

 

[saltyfilmfolks]

I dint see anything that would make it do that. Flow would be the next question. What light was it under where you got it?
does the hydra controller have an acclimation mode?
A possibility of chem warfare with the duncan?

 

[Centerline]

I dint see anything that would make it do that. Flow would be the next question. What light was it under where you got it?
does the hydra controller have an acclimation mode?
A possibility of chem warfare with the duncan?

Flow is ok in that area of the tank - not too fast and directionally randomized via opposing Gyre pumps.
When I got the coral it was under Radion Gen 4s - no idea what the actual par was but was with several other LARGE lps. My understanding is that these are often found in large shallow lagoons and enjoy the same params that welso do.
The Duncan could be the issue - moving it now.

What about that red cyno look to the exposed coral? Any idea what that might be? Its down in the bone - almost looks like it was dyed.

I've seen this before on a shipment of LPS that I scored from Australia in 2005. Was told it as a bacterial infection that took hold due to shipping stress. No idea if that was correct or not but if so it implies that on this particular coral its a bacterial infection form some sort of stressor in the tank.

 

[saltyfilmfolks]

What about that red cyno look to the exposed coral?

it could be cyano feeding on the decay. OR, that's what color the bone is as the flesh leaves the bone.

how odd. Lets get more eyes on it. #reefsquad

 

[Centerline]

it could be cyano feeding on the decay. OR, that's what color the bone is as the flesh leaves the bone.

how odd. Lets get more eyes on it. #reefsquad

Could be cyano but there is none elsewhere in the tank. If so its worked its way through the bone to the point it looks like a dye.

So yes, lets do so. #reefsquad

That reefsquad thing is kinda like magic eh!

 

[JaimeAdams]

Any idea on what the Alkalinity of that tank that it came from was? I've seen the tissue recession on some LPS from not just all swings but from moving from one tank to a different with big differences in ALK.

 

[Centerline]

Any idea on what the Alkalinity of that tank that it came from was? I've seen the tissue recession on some LPS from not just all swings but from moving from one tank to a different with big differences in ALK.

Just call and they keep it at 8. ;(