GSP dying?

[Baffels]

Hey all!

Tank is around 2 years old and I have had this GSP for all of those 2 years. It has covered a huge chunk of the overflow. Over the last 2 weeks or so, it has slowly lost its color and now most polyps are not opening. The GSP under it is thriving and was actually cut from this patch around 5 months ago. All other corals are doing great. Thoughts?

No changes in lighting in years, parameters are stable. ICP test lately had no issues.
Alk - 10.3
Cal - 430 to 440
Mag - 1440
Nit - 8
Phos - .09
Sal - 1.025

 

[boacvh]

I'd give it some time. My GSP gets fits like these for a few weeks and then comes back stronger. As long as your parameters and light haven't changed you should be ok. Run some GAC maybe?

 

[Zakary2003]

My GSP looks just like that whenever I have cyano flare ups in my tank. It closes like that and then I noticed the red film a day or two later. If you don't have a cyano issue, maybe it has to do with something else iritating it. Try gently blowing on it with a turkey baster to remove any debris and dislodge any algae or slime. That tends to work for me.

 

[jabberwock]

Maybe clean return pump and or wave maker to restore flow?