my best succes for sps was to limit the softies in the tank,as they produce toxins that harm the sps,p04 should read 0 ppm,n03 as close to 0 ppm as possible,alk or kh should be between 10-12 dkh,calcium 420 ppm double ended hqi or mogule base metal halide works great,strong h20 flow,allot of montipora species are great beginners the digitata and capricornis are great.placement should be top of tank.anything else i didnt mention? please add.