One of the key points in keeping anthias successfully beside feeding is temperature. Most of the times , if temperature is around 75 - 76 F , it really helps with anthias keeping infections at bay .
The other thing is low lighting and hence they fare pretty well in a NPS tank.
I myself have 3 groups coming tomorrow and as always pretty scared even though they are quarantined and all - Charlenae , Randalls and Loris . All deepwater and definitely wayy tougher but a little peaceful compared to the Ignitus, Bartletts and Bimacs .
Have loads of stashes of cyclops, cyclop zee , nutramar ova (thats magical for purple queens) , mini mysis , frozen and live brine shrimps, LRS and reef chilli at hand . But still am scared as I know they drop dead so easily especially the deepwater ones.
Wish I could keep them in a NPS tank but mine is acro dominant with temparature constant at 77.2 . Will see how it goes .
Regards,
Abhishek
I can't swear what temps or light they are normally collected in, but I've had a number of tanks and anthia groups in normal temp(78ish) and pretty strong light myself, as well as many other people I know that keep them, I have not witnessed or read about any issues in this area myself.