Cyclura,
I'm sorry to be the one to point this out but, I'm afraid you have misidentified your clowns as true Percula clowns or someone else has mislead you to believe they are the real thing.
In my humble opinion, what you have are Amphiprion ocelaris. The real Percula Clowns, Amphiprion percula have broader black borders surrounding the white bands. If you could count the spiny dorsal rays you'd find that A. percula has one or two more rays than A. ocelaris but that is impossible to do on living, swimming fish.
Here's a picture of a breading pair of Amphiprion percula. The color difference to yours is quit noticeable.
It can be confusing because even respected authors use common names such as true percula, false percula, percula clown fish instead of the Latin names as I did above. If we all got into the habit of looking up the Latin names and used them in conjunction with the common names, I think there would be less confusion.
Now, don't take this post as there being anything wrong with your clown fish. They look like a fine pair and you should be proud to own them. I just think it wiser to call them what they are.
Respectfully
Dick
