I lost my clown today to what I believe to be brook. Cloudy eyes, mucus on skin and rapid breathing last night. I noticed this 2 days ago but honestly I didn’t want to believe that she was sick. Even though I’m upset about it since she was my first fish, she is not the only one in the tank. I have a royal gramma too and now I need to think of his health too. I don’t have the funds to set up a qt tank so honestly I’m kind of stuck. My royal isn’t showing too many symptoms besides slight loss of appetite. I really do just need advice on what to do next (tank is 5 months old and I haven’t added anything new so what could’ve introduced brook into the tank?)