Looking for an ID on this

I appreciate all the responses. I guess I’ll have to try manual removal first. I may also try some aiptasia X just to see what happens. I looked over my tank and there’s small patches on almost all the rock. Idk if it’s released spores possibly when I’ve scrubbed it or what. I may also look into the urchin mentioned. I just don’t wanna have to take down my whole tank that’s been set up for 3 years over this stuff. Smh!!

This is what I mean about removing just the rocks. The corals have been growing for years, but you can see the red mat of whatever it is under the green favias.
Thanks all.
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It is a very very had to remove. At my work I refuse to sell them to anyone. Does doesn’t mean you can’t fight it
 
One way to deal with it is to remove the rock you have it on and rinse under or most effective boil the rock. You have to kill it 100% or it will come back. Any coral that is damaged you should put into a low light part of the tank. Give it some time to heal then you could put it back in in place. Coral can live long time in low light
 
Waving hand or pulsing xenia.
This is the most common easiest corals.
Sometimes pulsing xenia do not pulse in certain tank conditions.

Also for removal you have a few options but they all result in peeling the mat back slowly or pulling the rock and scrubbing the rock or boiling the rock and starting over with that rock.

Xenia do not have any toxins plus you're boiling the rock not eating it.
Zoas and Paly sometimes can make people sick and there a few others that can if not careful. But this isn't a clove polyp of any type it a xenia they come in a lot of varieties depending on the tank conditions.
 
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Do it in a well ventilated area like out side
You are clearly a well seasoned reefer that must know. I think the majority would respectfully disagree with your opinion on boiling rock. I myself strongly recommend against it. My statement still stands. Don't boil rock! Just because you aren't dead, doesnt mean it is ok to do. Even pulsing xenia is hard to kill. [emoji6]
 
Done it before and I’m not dead
This logic is not helping anyone or the hobby. If you want to endanger yourself or your family by all means but suggesting it on a forum where new members who have no experience and can possibly hurt themselves is wrong.
 
Unless you want the coral gone

Or your family.

Some corals contain toxins which aerosolize when boiled, and can kill anyone - or anything, like the family dog - that breathes them. The fact that you did it one time and survived _does_not_ make it in any way safe or advisable.

Patience is a virtue in this hobby - a few days in the sunshine would do the same job, without putting your loved ones at risk.

~Bruce
 
Done it before and I’m not dead
This genuinely does not mean its safe.... people have also done electrical work on live curcuits and also not turned up dead, it is still admittedly a bad idea when there are other viable options. Boiling live coral can vaporize the toxins and it is well documented how little of some coral toxins it takes to cause severe nervous system damage.

Freezing rock is just as effective without the risk. Then brush it down in a bucket of water and re-cure it afterwards , instead. The coral pretty much melts once it thaws.

No doubt it's effective, gutty, but it is dangerous.
 
It a Xenia how many of you got this right? Yet you're scolding me over boiling them off rocks.
I don't really recommend doing it because it smells very badly.
But it is an option if you know your corals.
 

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