Fluorescents usually need 30M to correct the green cast as Walter says, and then they may need additional filtration to correct color temperature. So if you're setting your digigizmo to 2850K, you're probably filtering White or Warm White fluorescent tubes that are designed to balance like tungsten, and you could use 30M + an 80A filter or an FLW filter, which combines magenta and blue to correct warm fluorescent bulbs to daylight film. FLD is for balancing daylight fluorescent bulbs to daylight film.
Kodak used to publish a guide with specific correction factors for use with a range of fluorescent bulbs that could be used in lieu of a three-color meter.