Acropora tissue lost

[vincephuket]

Hi, I received a blue acro frag this morning, glued to a plug and put in my tank. It was fine, polyps out. In two-three hours lost all the tissue.

All the other sps are fine. Water parameters are good except for PO4 which are too low (bottomed at 0.00).

What could have happened? Stress? Strong light (I did not acclimate for the light, it is something I normally don t do).

Would love to hear your opinions...

 

[Daddy-o]

Stress from dipping, shipping, not water acclimating, lighting, too much flow?

 

[Hermie]

are you sure it's not just bleached, and the tissue is not completely gone? I've had corals that I thought were dead but it turns out I was wrong, they were just bleached and they came back over time.

 

[vincephuket]

are you sure it's not just bleached, and the tissue is not completely gone? I've had corals that I thought were dead but it turns out I was wrong, they were just bleached and they came back over time.

 

[vincephuket]

Stress from dipping, shipping, not water acclimating, lighting, too much flow?

Mmm probably dipping and lighting... flow I think it is fine.

 

[Hincapiej4]

It's not dead, I think. Any polyps? If you look at my thread, you'll see a bleached acro, but not dead and it's coming back.

https://www.reef2reef.com/threads/dead-or-not-dead.765012/

 

[Macdaddynick1]

Hi, I received a blue acro frag this morning, glued to a plug and put in my tank. It was fine, polyps out. In two-three hours lost all the tissue.

All the other sps are fine. Water parameters are good except for PO4 which are too low (bottomed at 0.00).

What could have happened? Stress? Strong light (I did not acclimate for the light, it is something I normally don t do).

Would love to hear your opinions...

From your post it looks like. Strong light 0 po4 = RTN. Perhaps there are other issues, but if your po4 is truly bottomed out at 0 that usually does it. Specifically I’ve noticed the issues with darker corals like torts or Granulosa that don’t react well to insufficient po4 IME. What are your other parameters while we’re at it? No3 and alk/ ph?

 

[Hincapiej4]

Actually, I got a better look, yea it's RTNing. Cut some off before it completely dies. You might save some...

 

[nereefpat]

What are your actual parameters?

Some folks will argue that 0 phosphate is an issue, but I don't see how 0 phosphate can cause that in a couple hours.

 

[Hincapiej4]

What are your actual parameters?

Some folks will argue that 0 phosphate is an issue, but I don't see how 0 phosphate can cause that in a couple hours.

I think it's more the shock going from a tank with normal or higher PHOS and high light, to high AND different lights with NO phos

 

[Hincapiej4]

That said, 0 PHOS coral will starve.

 

[vpoiu1263]

Hello everyone, mine phosphate is also tested 0 by Hanna check for a long time. So far the acropora are mostly good.
But how to increase a little phosphate by adding something?
Could any one the got any answer for increasing a little phosphate and nitrate?

 

[Daddy-o]

Hello everyone, mine phosphate is also tested 0 by Hanna check for a long time. So far the acropora are mostly good.
But how to increase a little phosphate by adding something?
Could any one the got any answer for increasing a little phosphate and nitrate?

feed more

 

[vincephuket]

I doubt the lack of PO4 can cause a RTN. And the other acros are totally fine...
My parameters

NH3 < 0.15
NO2 0
NO3 10-15 ppm
KH 8
PH 8.1
Sal 35
Ca 420
Mg 1320
PO4 0.00

 

[DMG Reef]

If you received the frag this morning, I wouldn't blame your parameters at all. I'd guess 100% shipping stress. Maybe got too cold or even worse, too hot. The only time I've lost frags on the same day I received them was when the seller didn't use a cold
pack while the temperature was 100 degrees.

I received a frag on Wednesday from a large vendor here on R2R. No heat pack, bag was cold. The frag has no color but is alive for now. I've got it on the sand bed until it recovers.

 

[Hincapiej4]

It's not your parameters, it's the shock that did it. And 0 po4 will kill corals

 

[vincephuket]

It's not your parameters, it's the shock that did it. And 0 po4 will kill corals

What products would you use to dose phosphurus, except Neophos which is not available here in Thailand?
Or maybe I will just take the gfo out for a couple of weeks...

 

[Hincapiej4]

What products would you use to dose phosphurus, except Neophos which is not available here in Thailand?
Or maybe I will just take the gfo out for a couple of weeks...

Feed more. Maybe shut off the gfo