Update- My Green Poci...

Lately, like the last few weeks, my Green Poci has been shedding polyps!
'
Pretty much everthing else is doing fine.

I moved it to a less light area about a week ago.

Not looking much better.

I'll take it out and dip it tomorrow, but, any ideas?

And please, my params are well. As I said everything else is doing well, and that's a lot of different corals.

I'm too embarrased to post a before pic- it was very full, etc.

Here's todays pic

 

The same thing happened when I had a Pocillopora. I'm curious to find out as well.

 

Most likely, it either had too much light or your Alk was too high. Or even a lack of flow is a possibility.

Just because the other corals are fine, doesn't necessarily mean there isn't a parameter problem. There's always one coral that starts to show signs first.

 

Yes,
It's been my prize coral for nearly 2 years, growing great.

In fact, when others have had some minor problems, my GP always did well, full, etc.

A few days ago, my Alk was 10.
There is plenty of flow, after 2 years I find it hard to believe it's suddenly a flow problem.
It had been in the same light for quite a while.
I moved it to less light thinking that may help- but not sure why.

I got off my rear and dipped it today.

Everytime I dip something from my tank, when the base is in the dip- these little shrimp looking things- I think they are Amphipods, come off.

 

The Amphipods are merely cleaning up dead tissue. I agree with Hunter, it looks like classic a alkalinity issue to me. Big time frustrating and it happens to everyone that keeps sps.

 

Ok, would that be too low, or too high?

Oh, and BTW- I have a frag plug of a rainbow Poci that's growing great- in the DT too.

It usually runs about 9, a few days ago it was 10-11. API.

 

10-11 isn't too high, but a quick shift from 9-11 could have done it.

 

That's getting up on the high side.

7-11 is regarded as the "safe" range. But not all corals will be happy at either end of that scale. NSW is ~7.

But yes, how fast it changed is also of the utmost importance. Moving more than 1dkH/day makes me nervous.

 

Are you running bio-pellets?

 

Thanks,
It did not move very fast at all- the Alk that is, or anything else for that matter.

No Bio pellets, no GFO