without any type of direct question it is hard for me to answer your question. please feel free to ask me direct questions, but int he meantime i'll try to help you locate good info that may or may not answer your questions...
i have never owned a Centropyge multifasciatus so unfortunately i cannot share personal experience. it is possible you may be able to find such advice in our reef fish forum here at RC, however (if you haven't tried there already). you can find that forum
here.
additionally, you may want to view
www.fishbase.org if you haven't already. you can find the page for your angel
here. be sure to follow all the links on the page, too.
i see that you are a student from your profile. your school library should be able to retrieve a copy of this for you in some form or another. FWIW i don't own it myself, otherwise i'd help you with any useful info it may contain. take this citation to you librarian and see if they can help you:
Burgess, W.E., 1991. Two new genera of angelfishes, family Pomacanthidae.. Trop. Fish Hobbyist , March 1991:68-70.
hehe... while you're at it, ask them to find you
these, too. just don't ask for too many at once
finally, don't forget about a google search
again, if there was something specific you were looking for, feel free to ask away and i'll help answer the question the best i can.
HTH
henry