hello can anyone help i found a ulcer on my congor and i have them in my discus tank and i am worried that my discus get them can i use myxazin or protozin can i use them with my discus and if so do i use the full dose 2.5 ml on 75 ltr of water i do a 30% water change twice a week and my water stats are ok the fish are all healthy and feedind good can anyone help please

If it gets worse, dose the Myxazin to start and use the Interpet med if Myxazin dose not work