Some people have had it work but its pretty rare.. Theres a thread on reefcentral about a guy who housed 27 clowns in a tank and it worked out for him. I'm not sure if it would really be worth the headache. Best of luck!
http://www.reefcentral.com/forums/showthread.php?t=1259398
http://www.reefcentral.com/forums/showthread.php?t=1259398