We have a small reef tank set up that is 90 gallons. Has about 60 pounds of rock and about 8 small corals. The small problem is I was gone on business for a few days and when I got home, my wife had found a very cute 1.5" humu humu trigger and was told by the LFS that he wouldn't nip at corals. She put him in a few days ago when I was gone. It appears that everything looks great and that he hasn't nipped at anything. Should I be concerned? If so, how the heck am I going to catch the speedy devil without tearing apart my aquascape and messing with the corals. Please help