Toadstool & Urchin

[BlueZquirrel]

Hi all. I just added an Umbrella Mushroom Toadstool (sarcophyte sp.) and a Blue Tuxedo Urchin to my tank. I did all the reading I could find before I purchased them. I was just wondering if anyone has any experience with these particular corals and urchins (your personal experience is worth a lot more than any article).
Thanks,
Tracy