Hey all, I'm pretty new to saltwater tanks. I'm 2 years in and everything has been going great. Run into a problem the last couple of days though. My emperor angel is acting really strange lately. It displays the following symptoms: 1) Twitching his head a lot. 2) Discolouring. Almost looks like bleached spots all over that vary in size. 3) Swimming erratically and close to the top of the tank. 4) Eyes look foggy and/or have little things on them. He's still eating, but not as much as he usually does. Thinking it might be Flukes and doing a FW dip but just want to make sure that is the right option. I have added a picture of it, and was hoping for some advice/confirmation from those more experienced. Any feedback would be greatly appreciated.