euphyllia eating flatworms

Hi Fellow. Off late i found my Green Torch few heads Receeding while few remained healthy. All Other Corals are healthy. After a month found the streesed heads starts closing till yesterday i took torch out and found Vermatids in its bone and some fleshy worm Or Sponge type things on its Bone ...

I got some euphyllia frags today. These were crawling around inside one of the bags. Are they euphyllia eating flatworms?