Need Help Identifying Strange Objects in Tank and on Snails

[wackerfire]

We were given a reef aquarium and have been trying to get it straightened out. We think most things are going well at this point but one thing we have not been able to figure out are what these weird things are that we noticed all over the shells of some of our snails. We have also noted that they seem to be deposited on some of the rocks. It seems like some sort of egg/cyst of sorts.

[Deinonych]

Recommend posting your question in the Reef Discussion section. You are likely to get better responses there.