Hey i have a 7" Kenyi, he was healthy, I put him in a new 55gal. with a filter off one of my cycled tanks. He seemed ok for 2 days then started shimmying, head up tail down,blood red fins, increased resp.tail and side fins are like they burned off! man! Put him back in the old tank, Treated tank with Maracyn, 5 days.Hes on the fifth day, hes better, but having trouble getting him to eat.Fungus infection, fin rot ? I'm confused. Both tanks pH 8.0, amonia 0, Nitrite 0, Nitrate 10, 80 degrees. Any help would be great.