Clowns and Mushrooms

[Quinn]

Two questions I want to run by you all.

I have two black clownfish (percula, ocellaris, saddleback, no one knows). One is much larger than the other and growing almost by the day. Would this indicate that they are now a mating pair? Can I expect them to spawn anytime soon? I don't plan on raising the fry but I would like to know if it might happen.

I have two regular purple mushrooms that I got with some caulerpa from Tony. They are living in my sump and almost being smothered by caulerpa (which I will be trimming soon). Could I attach them to a rock and put them on the sand bed of my main tank without worry of them multiplying until they take over the tank? For some reason I've grown attached to them and feel that they'd be better off in the display tank.