Torch spewing brown stuff...normal?

Hey,

My torch (yes he survived the copper) has been seen spewing brown stringy stuff in the evening a couple of times. He did it once before the copper incident so I don't think they would be related. Anyway here is a pic...this normal?

 

Have you been feeding it? Could it be feces?

 

Zoanthelle (spell?) maybe?

 

The only time I've seen mine do this ia a couple of times when moving them. They could be stressed for some reason?

 

It is a fairly new coral, about three weeks I guess. So I suppose he is still getting settled in. Seems happy other than this.