Clownfish help!

[NanoReef22]

Hello, I have a couple of picasso clownfish. I added them to the tank two weeks ago. And in the last week they have started getting these black spots all over the orange part of their body. Here are some pics. Wondering if I should be worried? They seem to act normal. But haven't seen this before. Any help is appreciated. As far as I know, they are not hosting any corals. Thanks all!

 

[NanoReef22]

Thought I might actually get some help on here.

 

[NanaReefer]

How are they doing now that it has been 2 months since your first post?