The other fish are eating well and moving normally or I thought they are. They’ve always moved like that but the only one I noticed who loves different is the wrasse. I’m the pictures can you tell if it’s ich?I watched both videos. Sorry, but the fish are moving too fast and under blue light, it isn’t clear. I did see one white spot on the yellow tang. However, the demeanor of all of the fish is very good, so if there is an infection, it is very early on.
Introducing invertebrates, if they came from a tank with fish in it, can introduce disease into your tank. I’ve seen dealers who house fish that aren’t doing well in their coral trays to “give them a better environment”. That is just crazy, since everything then leaving that tank can be infective!
Jay