Id on this please?

[kstuart]

What is it?

now

sometime in the middle

when i got it

 

[dblase]

sweet looking coral

 

[Justin74]

Hydnophora Sp.

Heres one specie it could be, also has links to other possibilities:
http://www2.aims.gov.au/coralsearch/html/501-600/Species pages/552.htm

-Justin

 

[GMAX]

I agree it looks like a Hydnophora. Probably one of the encrusting species.