I have a Pineapple trigger. He has been in my tank for about 3 months. I did not quarantine him because I have no quarantine tank. Of course about 4 days later he had ich and so did my clown trigger. The clown past, but all of my other fish were fine. I treated my display tank for 5 weeks with copper. After everyone looked healthy I added an eel this weekend. Now my trigger is showing signs of sickness. He has this big blotchy spot on one of his sides. He also has a big white spot on his fins, and he also looks to be developing ich again. How should I treat this as I don't have the materials to set up a QT tank.