Does anyone know what the most effective medication is for hemorrhagic septicemia? I have a couple angelfish that are showing symptoms and I moved them to a quarantine tank. I think they got it from a smaller one that I brought home that died. I have treated for a couple days with Tri-sulfa and it doesn't look like it is getting worse, but it doesn't look like it is improving either. I know it is a gram negative bacteria, but can show resistance to many meds. Has anyone had any success treating this disease? What meds do you recommend?