I think I find a common predator of Kenyan Tree. I know that Pencil Urchin is a omnivore, sometime they eat corals. I have a Pencil Sea urchin in my 65 gal tank, and also have a few small piece of the Kenya Tree in this tank. I plan to watch this coral like a hawk. Prune and remove aggressively to keep it from taken over my tank.
Anyway, several Kenya tree frag disappeared overnight, near the Pencil Urchin. I brought a small rock with a colony of Kenya tree on it to test and see if the Pencil Urchin will eat it or not. I was quickly rewarded with the Pencil Sea Urchin chomping down on the Kenya tree. In the picture below, right in the middle of the picture is a Kenya stalk been chomped down by the Urchin. I will tank picture of this branch, or what remain of it tomorrow.
So those of us with a Kenya tree infestation, be encourage. There is a way to control this pest after all. I am getting an army of Pencil Urchin for my tank.