Description: These are branch style Live Rocks generally shaped like a long and narrow, dense branch of a tree. They appear Pink, Red, Orange, Purple and Green in color owing to the type of Coralline Algae growth on them. When rocking your reef tank, it is acceptable to combine a few different islands rock. You may also alter the sizes and shape of your live rock with a hammer and chisel. This will not damage the integrity of the rock,or anything living within it. Please be careful to wear eye protection if you are chiseling live rock