Well I have no clue why they die,I believe is that they are just very sensitive shippers and some never recover from it and just slowly go down hill IMO thats why they just start to die after 3 or 4 months in captivity,but they are my favorite corals so i just try to find ones that are healthy and go with them I had about 15-20 in my tank and 1 time and about 5 or 6 I've lost...but hey this hobby wouldnt be fun If everything always lived
