#zoanthid help

What is this slime on my zoa ? Is it bad ? This is the only zoa (captain jerk) I have. Brought it a week back. Today I fed them reef pluse powder food, how often I have to feed them.

So I’ve got this zoanthid that been in the tank for years and even grew a baby, about 2 months back I upgraded my tank to a 90gal and no matter what I do I can’t get this thing to open up.mind you I own several sps and lps colony’s along with a toadstool that all are nice and healthy.what should...