I need an ID, is this a bad guy?

[4ptbuck]

thanks guys

For the life of me, I can't grow zoos.
I used to be able to. Had a fanatasic zoo garden.
I thought it was the summer heat that wiped them out 2 years ago, along with my lps.
I am re-establishing my lps.
I've tried a few time to re-establish with frags, with no luck. They seem to last only a few days, then dissapear.

Would urchins bother them? Could it be my tuxedo, who I've seen over the frrags?