I recently had a possible case of ice or marine velvet in one of my quarantine tanks. I dosed the tank with copper but I may have overdosed on accident. This led to the deaths of several fish unfortunately but I was able to save my marine Betta. I moved him to another quarantine tank but from the start he had cloudy eyes and had to expend his energy struggling not to float to the surface. That was two days ago. Yesterday I added a half dose of prazipro since I wasn't sure whether his symptoms were disease caused or from the copper ( cupramine) and I wanted to make sure he didn't have flukes. At first he seemed to be pooping more and his color came back a little so I upped it to three fourths a full dose. Today I saw him floating at the top of the aquarium, his eyes are so cloudy they're almost opaque. Is there a way for me to save him, if not what could have caused this? I don't think he had any marine velvet and I'm fairly sure the prazipro wouldn't have caused his condition to worsen.