I know others have some unintentional 'hybrids' as I do. Sometimes when corals touch- chemical warfare and disaster! Like when my Pocillapora touched one of my plating Monti's. But this BN has actually grown into an arm of this other type of BN. These are all pics of the same area with the corals 'fusing' I thought ther greener one was a stylo- but a coral guru local saw my DT and said no- I can/t remember what he said it was though.