Woke up today and my clownfish are panting, staying near the bottom, and one of them is covered in white marks/spots. They are very big and kind of look like what I thought mucus plugs might be. The fish have been in a QT tank for a few months now. I have treated them twice already for ick. I was just feeding them some Paracleanse soaked food for white poop but other than that I thought they were golden. Everything was fine yesterday and they even ate well. I saw no problems. Today I go to check on them about noon and they are like this. I want to say it might be brook.