Torch Coral Receding Skeleton but Full Polyp Extension

[Duncan Tse]

I have had these torches for about a couple months now and I have started to notice that most of them are receding from the base but the polyps are all out and healthy.

Trying to figure out what is wrong with them as I'm worried they will die on me soon. They are getting around 200 par in that area

37 gallon reef
Alk 8.5
Ca 425
Mg 1380
Sg 1.026
NO3 10
PO4 0.06

I have attached a video of my tank so you can kind of see how much flow they are getting

 

[Flippers4pups]

Euphyllia can at times close up like that and look like skeleton exposing. My personal opinion is that it's upset, but not by flow.

 

[JGT]

I have had these torches for about a couple months now and I have started to notice that most of them are receding from the base but the polyps are all out and healthy.

Trying to figure out what is wrong with them as I'm worried they will die on me soon. They are getting around 200 par in that area

37 gallon reef
Alk 8.5
Ca 425
Mg 1380
Sg 1.026
NO3 10
PO4 0.06

I have attached a video of my tank so you can kind of see how much flow they are getting

The one in the first pic!looks slightly receding but the other 2 look fine, esp the third pic. Your tank parameters and flow look spot on for Torches. Could they have been receding when you got them and they are now in fact making a comeback or you definitely noticed a diff from the time you got them to now?

 

[Duncan Tse]

Euphyllia can at times close up like that and look like skeleton exposing. My personal opinion is that it's upset, but not by flow.

Yea I took that pic when the nights were off with flash on to show you the skeleton

The one in the first pic!looks slightly receding but the other 2 look fine, esp the third pic. Your tank parameters and flow look spot on for Torches. Could they have been receding when you got them and they are now in fact making a comeback or you definitely noticed a diff from the time you got them to now?

I know the first 2 pic the skeleton is def receding as it was a little longer down the branch when I first got it. Not that you mention it I'm not exactly sure about the 3rd one because it seems to have gotten taller with the bottom receding a little.

Have heard that when torches are splitting the skeleton also changes shape but I'm not too sure.

I have been checking for pests every night too but I haven't found any so far.

Would you guys recommend a dip maybe to the first torch cause the skeleton seems to have been receding almost to the head already in the past 5 months. Polyps are fully extended when lights are on but I'm not sure if that is a good indicator that it is healthy.