OK, you did pretty good on the worm. Lets have a try at this. They are hard, white, and stuck to the glass pretty well. I scraped some off a week ago and there are more now.
They are on the side and back where I can't get close. They are really stuck on the glass and the clown tries to eat me when I stick my hand in to get them. I managed to get one off with a knife but it floated away before I got it. I just finished a water change but I will try again next week when the water is lower.
Found one on the pump and it looks like it is one.
I might. LFS just said snail but I looked and I might have one. If they are eggs then she's having a great time. They are randomly spread over the glass, back and sides where I do not clean, and, I think, on the live rock. They are tiny, smaller than the head of a pin, and are different sizes.