I have had my sun coral for two weeks now and it still will not open! I've used the same foods and methods the previous owner did and still nothing. It doesnt look like its dying but im getting concerned. Last week i moved it to see if it would make a difference and no luck. I had it in a cave opening with low flow and partial lighting then move it to the middle on the bottom. 3 or 4 of the tiniest polyps open when i feed but thats it. It has 20 to 30 polyps and im afraid if i cant get food into it it will die. any suggestions? I don't want to lose this piece