What is this?

[Ragman Jones]

Saw this in the DIY section and I like it. But what it is?

 

[returnofsid]

Most likely Montipora capricornis

 

[drummereef]

Looks like an orange monti cap to me. Fast growing, relatively easy to keep SPS.

 

[JEFFR259]

Yup, and they come in other colors too, like green or purple. Easy and fun to watch grow!