Here's a link to making one:
http://www.atlantareefclub.org/forums/showthread.php?t=10275">Fish Trap</a>
And a good link for catching fish in general posted on Reef Central.
[IMG]http://www.reefcentral.com/forums/showthread.php?s=&threadid=707656">http://www.reefcentral.com/forums/showthread.php?s=&threadid=707656</a>