I currently have a ywg and Orchid dottyback in qt due to a velvet outbreak in the DT. They have been in qt for approximately 6 weeks. I’ve treated for 4 weeks with copper. Now I’m currently on my 2nd round of PraziPro (dosed Saturday) for good measure. I noticed that the dottyback appears to have a frayed tail fin. I’m thinking it could possibly be fin rot? I would post a pic but he moves so fast there is no way to take a good pic. I’ve been doing 50% water changes every week in an effort to keep the water quality up. Can Furan-2 be dosed with the PraziPro? The ywg looks okay but hardly eats and doesn’t move around much. However, it has been acting that way since being moved from the DT 6 weeks ago.