coral identification

[arod-diaz]

Some help. This is some rock I got from the purchase of tank and I'm not to sure what it is. It's small but you can see it its smack center of pictures green and purple. It's definetly some type of coral.

 

[kdpuffer]

To small to really know for sure but it is definitely coral. It looks like a small piece of green and pink frogspawn but could also be a hammer.