Does anybody know what is happening to my clownfish? I'm currently battling Dino's in my reef tank with Dino-x, three weeks in. Last thursday all of a sudden one of my clownfish became lethargic and his stomach started swelling up. He passed away a day later and was really swollen like a balloon. I asked my LFS about possible treatment but they didn't know what it could have been. And now all of a sudden my other clown is also showing signs off illness. His belly isn't swollen, but he stopped eating, is swimming around the bottom of the tank. I also noticed suddenly these marks appeared on his face. Checked tank parameters like ammonia, nitrate, salinity, temp and phosphate but everything seems to be in check. Thanks for your help!