I've had my RBTA for 1.5 years and it had gotten to about 20 inches across. A few days ago it hunkered down behind some rocks and when it emerged there were 2-3 anemones. I'm pretty sure there are 3, but it's hard to be certain because of where they are. Has anyone seen an anemone split three ways? It looks a little ragged now, but I imagine that splitting is stressfull for the anemone.