Hitch Hiker Coral ID Help

[Reefadiction]

I got a strange looking hitch hiker coral growing on the edge of my chalice about 6 months after my tank crash. I believe it's maybe an lps since it has skeleton structure like ducan or torch coral. It also takes reef roid when i tried to spot feed it. I first notice it in the edge of my half dead chalice; it looked like a small polyp about 2mm in diameter. It is now about 3 months since i noticed it and already have skeleton like an lps and about 3/8 of an inch. Cool thing is i just noticed this morning that there are 3 tiny polyps like it growing in the same area on the half dead chalice. Appreciate any inp ut to ID this cool little thing folks.