Any Idea on what I have here

I'm having second thoughts about the "eviction" but yes I was thinking it will want the entire rock its on, and if the sting is that nasty, at some point it will become an issue. the closet corals to him now is a dig monti and a blasto. Also I have some torch corals but they are below it. Here is a better shot from the side of my tank, you can see it in the upper right hand corner. The Blast is the closet at roughly 4-5 inches, you can see that at about 1 o'clock to the Horn



I am pretty certain after thinking on it I will keep it. A big reason is that it has started to really encrust the rock and I dont want to pull the rock to "scrub" what does not come off once I detach it.

I was just thinking I could put at least an acro or 3 in that same place.

On the bright side-keeping him is a good thing since its growing well, and it will save me money overall, I assume it likes the tank/spot since as a slow grower it really is growing well and fast in my opinion.

I appreiciate the ID's from everyone. I have started keeping track of any history behind each piece-its my form of Geneolgy.

Happy Reefn'