Thinking of getting a pair or trio of these (now that I sold the skimmer) for the tank. They are in the realm of "reef safe" butterflies (Mitratus, Declevis, Tinkers, Burgess) so I am thinking of giving this a go. It is a more expensive option than the pyramids, however the pyramids are never available!!!
Also thining of adding the one angel fish I have always wanted but always denied myself - a Goldfalke.
If I get these it will be this week I think.