Help with frogspawn

[seanb]

What would cause a frogspawn to close up all of a sudden. Mine was doing well, even starting to form a second head, and then all of a sudden I noticed it was withdrawn yesterday and seems to be the same today. Water Param's are good, no detectable Phos or Nitrate. Other 3 LPS and 3 SPS doing fine. Any thoughts as to what could be causing it to close up?

 

[elegance coral]

Many different things can cause this. Shrimp, a fish using it for a scratching post, or any number of tank inhabitants. Keep an eye on it to see if someone is harassing it. Good luck.