As expected, Flexibacter maritimus medium (FMM) medium containing freshwater (0 ppm) was best suited for F. psychrophilum growth, although growth at other salinity levels was also noted.
Eins og við mátti búast óx F. psychrophilum best við ferskvatnsaðstæður (0 ppm), en vöxtur greindinst einnig við önnur seltu seltustig.