my friend got a big piece of black sun coral to frag up and sell.i dont no why he nevr feeds his tanks so it never opened for two months and gave me some of the remaining frag.i put two in my tank and let them get acclimated of a few days and it allmost receded to the end.so i put them in a small tupperware daily with water from the tank i polluted the water and let them sit for 1 houre then threw out the water and placed them back in the tank this took 2 weeks and i saw a tentacle.every day durring the feeding in the cup a little more was comming out till the polyp fully extended but still receeding.so i got allot of fresh clams and shrimp and fed them every night with my tweezers till about one more month and the polyp has recover on the whole stalk and it seemed to have spawned cause i have a bunch of little heAds growing all over even were they didnt touch now they are open 24/7 and look so cool and i have 5 mini colonies growing all around the tank.i never thought this would happen i want to get orange or yellow dendro and try to get him to open all the time and spawn.anyone want a small colony of black sun i will trade forr a polyp of yellow/orange and in new jersey?