My tank has been up for about 2 months. They are at the bottom of the tank, I have a 75 gallon with a 6 light tek light on it. It has 3 Blue +, 1 blue aquaspecial, 1 purple, and a daylight bulb in it. It gets enough flow that it isn't plastered down but still moves. PH 8.2, Nitrates 0, phosphate level is 0, my salinity is 1.024, my Alk is about 9-10 dKH, and my Cal is about 440 mg/L. Some of the polyps have a whitish tip most are still purple and some look fine and are open some have smaller "fingers" but are open. I did drip acclimate them. I will try to get a pic tonight. I have 2 blue damsels, one talbot damsel and 2 clown fish. I have a glove polyp that is doing wonderfully and rapidly growing. I just put a xenia in on Saturday so, it hasn't had a chance to do anything. The other corals are no where near the purple star polyps.