Clown commiting death by zoas?

[Lampshade]

My clowns do the same thing. I have a 12" GBTA and the clowns still live in the zoa's. They've been there for 6 months or more now, seem to be doing well, other than the black spots. They even look like they may be breeding, the male used to stay close with the female roaming, but recently the females been laying right in the zoa's with the male getting food. My zoa's have grown used to it too, they no longer close when the clowns touch them. I'd say not to worry about it. I think I have pics posted of my clowns on an old thread here, I'll take a look.