Great info all
Along with the lions, rabbits, stone, and soap fish people should also remember that the common coral catfish has a powerful sting.
Here is a link with some info that may help
http://www.centralpets.com/pages/cri.../SWF2408.shtml
Note this part:
“If it is necessary for you to handle your Coral Catfish, you should use caution; spines located to the front of the pectoral and dorsal fins are venomous and will cause a painful injury. If for some reason it is necessary for you to reach into an aquarium containing Coral Catfish, use caution and be aware of the fish's position at all times.”
HIH
S