Do i need to remove this ?

ying yang

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Hi hope all is well.

Found this on a newly purchased gsp colony after cut/fragged it.
It looked like a circular open which was raised and black in the centre and thought possible an old barnacle shell,but after lights out last night zoomed in on phone and seen an anemone looking thing,im new to saltwater but doesnt look like how i seen aiptasia when doing research but it could be,its about 4-5 mm diameter so very small and inside and seen it last night as taking photos it went back in and looked black circle again,the actual tentacles sort of look transparent but as it in the dark and only flash on phone it could be any coloyr i suppose. My thinking is some kubd anemone maybe a baby majoma or however you spell it so any ideas ?
There is another circular black raised thing next to it also but not seen anything in this as of yet.
For context you can see a leg from a red legged scarlet to see how small it is and a conch right next to it.
Thanks for the attention


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ying yang

ying yang

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Look like sun corals, and they are starving
May try to feed them.

Thanks again mibu,i think you may well be correct,i dont know much about sun corals other than their nps corals and non photosynthetic so usually in wild at entrance of caves/under hangs and watched few videos over the years on placing pop bottles over top of them when feeding so other livestock dont pinch food or remove from tank in seperate container.just had quick google search on info on them and how to feed them and will do some more research to see how to bring back to life and more importantly if it completely dies will it pollute my tank so bad with toxins and kill rest of the livestock etc.
I just read there is a black variety that a little harder to care for than the yellow/ orange ones but thankyou for the reply.
One polyp i can definately see and one next to it does look like some polyp sticking out of it ,but if its sun coral idk or something else but will try feeding it some brine shrimp or even some flakes and make powdery mixture as juat watched video saying they use alot of energy putting polyps out and eating and if to big food they cant digest and spit out wasting energy so if mine is dying then this not good.
My wrasse just went under sand and cleaner wrasse will go sleep soon and lights go off 30 minutes later so will try feed before lights off so can see ^_^
One the screenshots i outlined in red does look like opening of mine ( zig zagged)

 

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Mibu

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If you decide to keep them and you save them. They come in black and orange from what I have seen.
Small foods to save them. Looks like you can bring them back. It's up to you. I think they are rather pretty! Miner tissue recession and they are searching for food. :)
 
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ying yang

ying yang

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If you decide to keep them and you save them. They come in black and orange from what I have seen.
Small foods to save them. Looks like you can bring them back. It's up to you. I think they are rather pretty! Miner tissue recession and they are searching for food. :)

Ok thanks for info.
I just used my large coral feeder and crushed some flake food that use for freshwater fish and just target feed them.they that small i had mrs with phone on zoom looking to see if grabbed food.they retracted but unsure if got food or not tbh.
Just realised today mrs bought some frozen copepods from lfs so will try that tommorrow as they tiny but i think best thing to do is take them out tank and into a container but the rock the gsp and these sun corals got lots white sponges ( i think pineapple) and orange sponges so going have be careful sponges eobt contact air.
I hope i save these sun corals and hope thwy bright yellow colour but we shall see and thanks once again for reply ^_^
 
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