She reported to the Atlantic Fleet, and "Tarantula" operated along the Atlantic coast with the First and Second Submarine Flotillas on training and experimental exercises until going into reserve at Charleston Navy Yard on 6 November 1909. She was recommissioned on 15 April 1910 and served with the Atlantic Torpedo Fleet until assigned to the Reserve Torpedo Group, Charleston Navy Yard on 9 May 1911 and placed out of commission on 4 December 1912. On 17 November, "Tarantula" was renamed B-3.