From the initial cutting of coral, thousands of new corals can be created! (fitzroyisland.com)
There is some dead coral here, but there's some great live coral and they've submerged some cages to grow new coral as well. (thehotflashpacker.com)
When it's handy, you can quickly counter any surprise parasites or bacteria that may attack your existing corals, and you'll always be ready to treat new corals. (petguide.com)