Just a word of caution when looking for an already mated pair:
Moving them can stop the breeding process for quite some time. I'm seeing that with mine now.
False perculas do not exist, they're Ocellaris Clowns, and anyone who is truly breeding these guys should be calling them that.
There are some websites that sell already mated pairs, usually in their eye and buy/WYSIWYG sections.
But just so you know, there is no buying/selling/trading allowed on this forum.