Noticed two spots of discoloration on one of my clownfish today. Seems lower energy but is still eating. Added some coral to the tank on Sunday, I dipped everything but I’m assuming that’s the source. Can someone identify what this is? 15 gallon tank with inverts in it so I can’t treat the tank. Could try to set up a hospital tank tomorrow but everything I’ve read makes me think I’m screwed and going to lose both fish. Any advice welcome.