Looking for I'd on this copepod?

[BeeGriff]

Its hang out on a frag rack and has made a "home" in the corners of the racks trying to figure out if it is sps safe as that's what's on the rack there is a bird nest that hasn't looked quite right the past couple days. The arrow show the home and the second circle is another one in its home I also think I saw this same creature go in and out of the base of a PC rainbow acro that I have. Any help is appreciated thanks. They are super quick by the way.

 

[Hitman]

Amphipod they are basically I big copepod. Fish love them and they breed very well in tanks. They are good guys.