Please help. I'm trying to find out where I can find a web site to get this information. What adaptations do reef fish have that cause them to be different from other salt water fish?

Question

Also, what kinds of relationships have evolved that increase fish specie survival?

http://en.wikipedia.org/wiki/Coral_reef

http://www.google.com/search?as_q=&hl=en&num=10&btnG=Google+Search&as_epq=coral+reef+fish&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=any&as_dt=i&as_sitesearch=.edu&as_rights=&safe=images

http://www.google.com/search?hl=en&lr=&as_qdr=all&q=+%22coral+reef+fish%22+ecology+site%3A.edu&btnG=Search