I'm developing a quarantine tank. I've been slowly adding bio media from the main tank to the qt tank. Recently, I've noticed some small critters, larger than copepods, that are populating the qt tank. I've attached a link to a Google photos video of the new isopods. Can anyone tell me if these are safe for the fish? I've read a bunch about parasitic isopods, but I haven't been able to find anything about how to tell the difference between the good and the bad ones. You have to wait until about 1/2 to 2/3 through the video before you get sharp focus.
Also attached
New video by Patrick O'Hearn
photos.app.goo.gl
Also attached