I hope video works...first time trying to load a video. I have a Talbot Damsel and a Chromis in a 20g Long. I noticed the damsels gill looked injured about a week ago and thought the two were fighting. Well its alot worse now and I am now wondering if its some kind of disease. The fish looks like its struggling to breath, its barely using the fin on the same side as the gill. I haven't noticed any scratching and is eating just fine. Please let me know what you think. Thanks