[shrugs] guess we'll find out. SWF says they are moderate care. it rates the powder blue as difficult care. i think there are only 2 trustworthy ways of finding out truth about the fish. one is personal experience with the fish (as I'll soon be doing) and the other is researching the experiences of many many other people. it is frustrating when one site says one thing and another says the opposite. starfish are great examples of this. some rate linkia as "no attention needed" animals, and others rate them as impossible even for experts. I guess this shows that we still don't understand a lot about marine life, and basically still have to resort to an element of luck. For example, some get lucky with anenomes, flowerpots, linkias, etc, while others can't keep them alive no matter what. Personally, I can't keep cardinal fish alive for anything, while more "difficult" animals are thriving. Why? I have no idea, except that I obviously don't understand enough about their environment. Hopefully, we will continue to learn more about the animals needs and so be able to more accurately replicate their environment. I'm excited to see what advances we make in the next 10 years.