Tom, here is what I have at my biographical register of CS Navy personnel on Fiske:

James E. Fiske, born Vermont, 1843; citizen of, and appointed from, North Carolina; original service in the United States Navy, from September 21, 1857; entered the Confederate States Navy, September 25, 1861, as midshipman; served on the side wheeled steamer CSS Patrick Henry, James River, Virginia, 1861; later served on the Jackson station, 1862; promoted 2nd lieutenant, February 8, 1862; later served aboard the ironclad ram CSS Tuscaloosa, Mobile Bay, Alabama, 1862 – 1863; resided as a printer, in 1880, with his wife Harriett, and sons, Charles (born California, 1876) and James (born California, 1878), in Zanesville, Muskingum county, Ohio. [ORN 2, 1, 299, 307 & 318; Register1863; 1880 U.S. Census.]

Additionally, the Register of Officers of the Confederate States Navy volume, published in 1983, shows that he was also aboard the CSS Mobile, at New Orleans and Jackson stations, 1861 - 1862.