Well my 17'' TSN died today, his illness came on very strong and rapid this morning his face was all white and red tail completely white and back half of the body was white with small holes?? I did a 80% water change, nitrates still between 40-80ppm I don't get it, I have 2 AC110's and have a DIY over the tank wet/dry filter made from a rubbermaid bin, is ther too much bacteria in ther wet/dry? please help.