90 Gallon 10 year old reef. Have had the leathers,shrooms,Frogspawn, Torch all for about that time. Have had them under a 6 bulb Aquaticlife T5 set up for a little over a year now. But have been under T5's for about 3 years. Diablo 160xs skimmer, just ordered the BRS 1000SS Bio Pellet reactor. Calcium about 480, not sure of the Alkalinity number but I know it is fine. Magnesium is 1300 or so. Want to try an SPS up high in the tank. Any recommendations?