Yes looks like it.
Siphon it up or the other fish / cuc will take care of it.
Here is a video of mine doing it:
Make it full screen, it really helps to see it better without this white background of the forums.
<iframe src="http://www.youtube.com/embed/DzxbKsKAXlg" allowfullscreen="" frameborder="0" height="720" width="960"></iframe>
Right after this the clowns helped get out what it was trying to get out. They tossed it to the side and let it fall to the substrate.