Update: We've been treating for five days, and his eye is begining to show signs of improvement. I kinda thought we'd lose him there for a while. I had no idea how much swelling he could survive! He's continued to accept food through the treatment process, which has made things easier, but he's still favoring that side as he swims. Fins are not clamped most of the time, and while he's slower to eat, he does gulp down his meds soaked bloodworm cube. Daily marycin treatments will continue another five days. So far so good.