Anything to stress it out? I have heard they sometimes split due to stress or even changes in the tank (flow, placement, temp)... I have heard of them splitting into two, but not three. Pretty cool as long as they are big enough that the clown won't love them to death. We had two large 10 inch bubble tips for almost 2 years, which have both decided to split in the last couple of weeks. So we now have 5 of them in there with our two big maroon clowns. Hopefully they will spread out the lovin and all 5 will be okay. Depending on where they move, we might have to rehome a couple.