Found in my zoas... is it bad?

[James Macaluso]

Was fragging my zoas today, and in the container were these little crab-like bugs. They have moving legs and seemed to either come out of my rocks or from the zoas themselves. I was kind of unsettled by them and would like to know what they are.

 

[Brad Miller]

Im not the best at this, but looks like good amphipods to me

 

[Lovemyreef2015]

When I zoom in they look like Ostracods.