I cut one of the anemones in half about 3 weeks ago. One of the anemones is doing clearly worse than the other 2 which is weird because its in the same lighting, flow, etc conditions as the other two. Anyways, I'm up to 3 now and I should be able to split them again in a couple of weeks.
On another note, the Dolphin Pet Village anemone I had earlier (the one I used to test out the LED lighting I got) is going gangbusters in my friend's tank. The one anemone I gave him about 9 months ago has multiplied to 8 now. The anemones are really taking over his little 24 gallon Biocube. The 2 clownfish he has in there are in clownfish heaven. I'm going to take a picture of it next time, in the meantime here is a picture (not mine) of what the purple with neon green tips anemones look like: