ID this alien please

[Trefaca]

Hello everyone, can somebody id this I have seen it last night and it was two times smaller and only yellow and orange colours now that it popped out out of nowhere it has green part. I have no idea what it is and it's completely out of sand and when blue lights are on its very bright on colouration.

 

[DSC reef]

Do you have any euphyllia in the tank? A torch coral? Looks like a polyp bailed out

 

[Trefaca]

I do have one torch and one hammer coral but none of them have any yellows on it they're just green and blue. I was thinking if it could be that but wasn't sure and if it is should I remove it?

 

[Trefaca]

That's it under blue light.