Hi guys, I just bought my first set of live rock and when I got home I realized I got some hitchhikers. I have no idea what they are and I can’t find them on google. Can someone tell me if they’ve ever seen them before, what they’re called, what they eat, etc? Anything would help. I actually love the little guys and I want to make sure they’re safe. Also, I’m actually in the process of cycling my tank. Ammonia’s currently at 2 ppm, and salinity is at 1.022. Is this okay for them? Included picture and here’s a link to a video I took (https://streamable.com/83shb). Thanks in advance.