Help! GSP dying but everything else doing great?

[MyFirstCar]

Hey! Tank has been cycled for 6 months, and was doing great. Had a gsp frag on the sand that was showing great growth, PE, and everything else. Then, one day after a 20% water change the polyps never come out again. It's been 2 days with them not coming out, is it dead? What could have happened? I have euphilia and a rbt nearby that are both doing great, which is what is really confusing me.

20 gallon

390 cal
7 alk

10 No3, 0.5 po4

Clownfish, euphilia, clove polyps, xenia, Duncan's, one mystery SPS for an experiment (doing well)

Before: (a little hard to see)

 

[Rick's Reviews]

Wierd as GSP are more forgiving? Maybe just a bad frag or not acclimated correctly (not to sound harsh or untowards)
Its normally the other way round

 

[MyFirstCar]

Wierd as GSP are more forgiving? Maybe just a bad frag or not acclimated correctly (not to sound harsh or untowards)
Its normally the other way round

Yeah, that's why I'm so confused. It was actually the first frag I put in, and has tripled in size in the last couple month's.

 

[Rick's Reviews]

Yeah, that's why I'm so confused. It was actually the first frag I put in, and has tripled in size in the last couple month's.

Ok I'm confused now... GSP growing or not, you say not growing then triple size? Can you grab a picture

 

[Uncle99]

They do this from time to time.
If everyone is happy, give them a week to peak out.

My GSP went in and out for years, but, sadly, one day,went in and never ever came back out. I’m packed with corals all of which stayed happy to this day.

Very weird.

 

[reef_1]

GSP frequently doesn't open for a day or two in these cases I always check other corals, if they look bad its a tank event, if they look good, I dont worry. GSP is by far the toughest coral in my tanks, even xenia dies way before GSP.

As everything else looks perfectly fine I wouldn't worry for now. Can that BTA reach and irritate it?

 

[Mark Novack]

Pests under the tissue of encrusting polyps can do that to. I have one that was looking worse everyday with holes appearing so I gave it the Red Sea dip at 150% strength. Lots of little beasts were in the bucket and the thing recovered like new.

 

[MyFirstCar]

GSP frequently doesn't open for a day or two in these cases I always check other corals, if they look bad its a tank event, if they look good, I dont worry. GSP is by far the toughest coral in my tanks, even xenia dies way before GSP.

As everything else looks perfectly fine I wouldn't worry for now. Can that BTA reach and irritate it?

Ok! Thanks.
The BTA is pretty far from the GSP - it's on xenia control haha.

 

[MyFirstCar]

Pests under the tissue of encrusting polyps can do that to. I have one that was looking worse everyday with holes appearing so I gave it the Red Sea dip at 150% strength. Lots of little beasts were in the bucket and the thing recovered like new.

Interesting! Were the holes in the structure itself? Or the polyps?

 

[Mark Novack]

Interesting! Were the holes in the structure itself? Or the polyps?

In the purple skin. It should be a smooth and complete cover of tissue but it starting looking like purple swiss cheese.

 

[MyFirstCar]

Hi all, looks like you all were right. After 3 days of fully retracted polyps, they’re back like nothing happened:

 

[Mark Novack]

Hi all, looks like you all were right. After 3 days of fully retracted polyps, they’re back like nothing happened.

And that's good news. They say that GSP could live in the toilet, but there is no species that I cannot kill.