My coral has developed stances blackening clumps and I just want to identify it to get to solving it.

[iwnltom]

So I just noticed this today on my LPS coral and I’m stressing, looks like rotting, let me know please !

 

[Gtinnel]

That seems to be a monti cap which is sps and it looks like the dark spots are necrosis where the flesh has died showing the skeletal structure.

 

[iwnltom]

That seems to be a monti cap which is sps and it looks like the dark spots are necrosis where the flesh has died showing the skeletal structure.

Is there a reason for this ? Why it’s happening ? How I can do to fix it ?

 

[iwnltom]

Is there a reason for this ? Why it’s happening ? How I can do to fix it ?

It just happened so quickly ! A day ago or 2 it was perfect ! Why so quick ? What could be the cause/fix? And thank you for your help

 

[MnFish1]

It just happened so quickly ! A day ago or 2 it was perfect ! Why so quick ? What could be the cause/fix? And thank you for your help

Did you add any new coral or fish? Any changes to the water, lighting/flow

 

[iwnltom]

Did you add any new coral or fish? Any changes to the water, lighting/flow

Nope! I added one tiny drag last night but how could that be the cause of all this ?

 

[Spare time]

List parameters and what test kits you are using.

 

[Gtinnel]

There are two common names for necrosis and they’re slow tissue necrosis (STN) and Rapid Tissue Necrosis (RTN). The first thing to look at is your water parameters and if they’re within the normal ranges and how stable they are.

Sometimes with SPS corals this just happens without anyone knowing why, it’s one of the reasons SPS are considered one of the harder corals to keep. I’ve had two frags of the same colony side by side on a frag rack and one corals dies within a day while the one beside it did great. As for happening so quickly it can literally happen within a day that the flesh is gone and the coral is dead.

 

[Cell]

Nope! I added one tiny drag last night but how could that be the cause of all this ?

Didn't this tank and all the livestock just go through a move?

 

[vetteguy53081]

So I just noticed this today on my LPS coral and I’m stressing, looks like rotting, let me know please !

Pics of area are distant of the spots which look to be sponge but if necrosis, some causes are:
- Alkalinity spike
- Temperature spike
- Salinity spike
- Low dissolved oxygen
- Poor water quality related with phosphate levels up to 5 ppm
- Change in water flow
- Additions of sand
- Changes in brand of salt
- Bad test kits giving faulty results
- Levels of minor elements such as Iodine, Potassium, Strontium
- Light intensity
- Addition of new corals

 

[MnFish1]

Nope! I added one tiny drag last night but how could that be the cause of all this ?

It shouldn't, but some of these necroses - if caused by a protonzoan or bacteria can progress quickly.. How old is the tank, etc. Parameters can be important as other have said - but it doesn't sound like anything is 'new'. BTW - at least to me - 'drag' is not a common abbreviation - what is it?

Once this starts some would frag off the good parts and re-mount in an effort to save the coral.

 

[Cell]

Considering these corals were moved just last week, you are likely seeing a result of the disruption. Did you match the parameters of the seller?

 

[Gtinnel]

BTW - at least to me - 'drag' is not a common abbreviation - what is it?

I assumed it was a typo and he meant frag

 

[iwnltom]

Considering these corals were moved just last week, you are likely seeing a result of the disruption. Did you match the parameters of the seller?

I think his tank was run down and he stopped caring, so I assume my parameters were better

 

[iwnltom]

Didn't this tank and all the livestock just go through a move?

Yes

 

[iwnltom]

List parameters and what test kits you are using.

All Hannah checkers
Alk-7.2
Phos-0.009
Calcium-530 (a little high but I’m fixing)
Nitrates are good as well

 

[Cell]

I think his tank was run down and he stopped caring, so I assume my parameters were better

That's not exactly the point. Even if his parameters were suboptimal and yours are optimal, the parameter swing is our concern.

 

[ScubaFish802]

Not sure if I missed this suggestion, but I had black areas like this on a soft coral a few months back and turned out a torch was hitting it at night from quite a distance away. Any chance it's being stung by a neighbor?

 

[iwnltom]

It shouldn't, but some of these necroses - if caused by a protonzoan or bacteria can progress quickly.. How old is the tank, etc. Parameters can be important as other have said - but it doesn't sound like anything is 'new'. BTW - at least to me - 'drag' is not a common abbreviation - what is it?

Once this starts some would frag off the good parts and re-mount in an effort to save the coral.

I was thinking bleach and not necrosis, idk If they are the same thing but yes, the tank is rather new 7-8 months and I just stocked a heavy amount of corals a week ago. I miss typed, i meant frag, does smth like this is it possible it works out and heals itself since it’s in shock?

 

[MnFish1]

I was thinking bleach and not necrosis, idk If they are the same thing but yes, the tank is rather new 7-8 months and I just stocked a heavy amount of corals a week ago. I miss typed, i meant frag, does smth like this is it possible it works out and heals itself since it’s in shock?

It is possible - but to me looks fairly extensive and bleaching is usually 'white'