Just an update. My SPS
seem to be doing very well. I have had to break-off chunks of my purple monti. cap. (couldn't find anyone local who wanted the frags) and the acro that I put in when I changed the lights has grown upwards about 1/4 to 1/2 an inch, spread quite a bit over the ceramic plug, and the main column has really thickened up.
So, primary verdict is that you shouldn't have too many problems keeping SPS
lights. Having issues keeping zoas though. Perhaps there is too much light for some of them