I have loads of Montipora digitata that grows like mad....M. capricornus grows like mad, then at the end of the summer when its seems like it would take over the tank, it dies. I reset the surviving pieces and the cycle starts over again. I also have 3 acro frags and a Pocillopora that are all growing well. I have 4 PC bulbs, 2 10K and 2 actinic, and the SPS are all at the top of the tank, placed about 3-4" below the surface. Some of the Montiporas are poking above the surface. The colors are good, but I don't have any of the intensely colored frags in the first place.