Isolate him asap, pneumonia is contagious to any turts he´s in contact with26pets;2738698; said:Hes in a 75gl. With a 100gl power filter. The tank temp is 80F. He has a basking lamp and place. He is 5in. Long. Housed with 3 other turtles and feeder fish. Feed: Turtle Pellets, and feeder fish. Will take pic when I get home.

AT this point nothing really surprises me