Does anyone have experience with this combination? I kept a red ear before for several years but I dont know how turtles do with fish. Musk's seems pretty small, and the oscar fairly large, thus the turt will probably not consider it food.. ...or is it? 
Also, I've read that the musk they secrete smells pretty bad - does this efect the water in a way which might damage the fish?

Also, I've read that the musk they secrete smells pretty bad - does this efect the water in a way which might damage the fish?
The prob is not the turt but the fish. Oscars can get pretty nasty at times and places like the eyes and nouse of a turt are vulnerable to bites. If you incist make shure both animals are of the same size
