Bought a new frag today and after it got settled in I noticed some hitchhikers. Circled in red is a feather duster but what I have circled in yellow has the appearance of tiny mushrooms almost. I am not certain if they are mushrooms or some other creature that has the appearance of a mushroom. Their fanned portion looks to be solid but I am not sure. And circled in pink, is a tiny snail shell. I don't know if I should remove or not incase it is not reef safe.
