 The ships' careers in Prussian service proved to be short and uneventful, apart from repeated boiler fires aboard "Nix".The Prussians were not satisfied with the ships, in part a result of "Nix"s fires and general unfamiliarity with operating steamships.They sold the vessels to Britain in exchange for the sail frigate in 1855; "Nix" and "Salamander" became HMS "Weser" and "Recruit", respectively.