I purchased a green/orange brain coral about 3-4 months ago. It was placed in the top 1/3 of the tank, low to moderate flow. The tank is a 47g tall with a 150w MH up top with a 10k bulb.\r\n\r\nAfter about a month, the coral started looking starved. I could see some of the skeleton when it was deflated. I just kinda kept an eye on it and it never really changed. About a month ago it started to lose some of it's color. Losing almost all of its orange. \r\n\r\n2 Weeks ago, I pulled it and started moving it closer to the top. Right now it's about 4" from the top of the tank. It looks the same though. At night it inflates up and it looks fine aside from the color loss, During the day you can see the skeleton of it.\r\n\r\nAny advice?\r\n\r\nNitrates are 0-10. Nitrites/Ammonia 0. Salinity is 1.026, Ca/Alk I still need to check. \r\n\r\nTankmates include: button polyps, zoas, xenia, clove polyps, variety of mushrooms, a clam, frogspawn, and a goniopora. I've seen increase growths on everything and haven't had any losses in at least 6-8months.\r\n\r\nPS, I run skimmerless. Do water changes weekly-biweekly. Top off/water changes with RO/DI water.