I think it's a sinularia. By looking at the other corals in the picture I'm guessing your parameters are within reason and you have enough light for this coral. I would just move it someplace where it's really going to get some good flow around it, and make sure to secure that base to a rock with some epoxy or something. You don't want to be fiddling with it if it happens to fall over. After that, just leave it alone and watch it grow.
GL.