that is too cool... i have a fungia that has grown from spawn...but i never saw the actual spawning...given the opportunity i would collect as many of the eggs as possible and be aware of any other corals releasing a "haze of sperm" and try to suck it up with a turkey baster...then i would place some of each into a small container with rubble and allow it some time to fertilize and settle...then i would place the containers in the refugium and pray....but it seems that you already have the miracle....perhaps you can create a network of spawning coral owners that may provide sperm or eggs to those that may need it...wow.....would you ever think this hobby would lead to coral spawn banks??