copperband butterfly...

[AJ_77]

This is a common theme at wetwebmedia.com, where there are many FAQ's on feeding, from butterfly fishes to anemones. Mysis shrimp is mentioned quite often, if you search on it you'll find a ton of info.

A quote from the WWM FAQ on butterfly feeding:

<<You should try to get away from the brine shrimp and use frozen
mysis shrimp instead - brine shrimp, even when soaked and enhanced
are still nutritionally hollow - much like potato chips. Mysis are
much better.>>

The page is here: http://www.wetwebmedia.com/bffdsfdgfaqs.htm

Hope that helps.