I've noticed that trait with my female prior to laying an egg, so that could very well be what's happening with yours.
Here's a link to a paper from the Cologne Zoo about breeding the coral catshark. It isn't free, however -
http://www.sciencedirect.com/science/article/pii/S004451691000081X
I know Zoodiver will have much more insight.
Here's a link to a paper from the Cologne Zoo about breeding the coral catshark. It isn't free, however -
http://www.sciencedirect.com/science/article/pii/S004451691000081X
I know Zoodiver will have much more insight.