Personally, of the Centropyge species, I think potter's are perhaps my favourite.
I'm on my second one right now. I lost the first in a tank move gone bad (actually lost the entire tank's fish inhabitants.
). I lost an ember/stigmatica blenny that day too thanks to that stupid anemone.
Never had a problem with nipping at corals (that I can see anyhow), never had a problem with clams either. Model citizens.
QUITE TIMID at first and it took a LONG time for her to get settled. However two years in she don't take no crap from no-one (there was a problem with my sixline bullying her at first, nipped and torn fins .. I tried to remove the sixline, you may remember my thread describing the misdventures of trying to fish for a sixline - but after a few weeks suddenly the fortunes turned, she started fighting back {only in retaliation}, she ended up beating the crap out of my sixline and there's never been a problem between the two since).
The fact that the two in the store seem to get along fine with each other is, in my opinion, worth something. They should almost go together to a new home because I don't know if you can pair up Centropyge's after them being solitary. I don't know .. maybe you can, but it wouldn't surprise me to learn otherwise. If they are a male/female pairing then that's got to be worth something.