Every so often I would find bits of my frogspawn tentacles here and there around the tank. Didn't think much of it. Then today I noticed one head had a strange looking mouth. Again, didn't think much of it. This afternoon the head wasn't looking so good, so I looked closer. What I thought was the mouth was actually a white stripe running down the back of an inch long flatworm! It was eating the coral. I've never heard of Euphyllia eating flatworms. Has anyone else? I removed it of course.