not necesarilly, isint the chemical composition of amonia, nitirite, and nitrate the same in fresh and salt water. or would the difference in salinity between fresh and salt water cause the test to preform different chemical reacations?
Liquid Master Test Kits
Fast, easy to use, and accurate liquid test kits. Eash kit comes complete with with test tubes, test tube holders, snap tight caps and complete instructions. Includes information on what test results mean and how to correct any unsafe water conditions.