I haven't kept one personally, but have had lots of experience dealing with them. They prefer moderate to bright lighting, low to moderate flow. Placement is usually on the sand (to minimize potential for tearing the large polyp's tissues) with plenty of room around it. If you can manage to mount it on rock with ample room and the polyp doesnt contact the rock, then fine. Be sure to keep it very distanced from other corals because the polyp extension is considerable But with this potentially finicky species (at least it is now), it may be best to put it in the sand. Also, they appreciate a feeding of meaty foods once or twice a week (maybe more or less depending upon your specimen).