Thanks guys!
I generally try to document as much as possible so that others can see what's going on and learn from my mistakes or explain what's really going on,(as opposed to what I think is going on).
Marina, I have no idea what induced the anemone to split. It wasnt very large by Ritteri standards since it was slightly less than 12 inches in diameter. I dont feed it heavy in order to keep its size at a managable level for my system.
I didnt have anything unusual occur water chemistry wise that would have stressed it out, and none of the other anemones in the system showed any signs of stress either, ( another H.magnifica about the same size in the 58 that's been with me for about year, a 6 inch H.malu I've had for 5 years in with it, 2 E. quadricolors I've had for about a year, and two S.tapetum anemones I've had for about a year).
Fish are fine, SPS are still growing, clams are still growing, this Nem just decided to split for some reason.
Nick