A complete multi test pack including all of the tests necessary to support the reef mature pror the marine care kit is a direct replacement for the previous marine lab and includes the test ph kh ammonia nitrite and nitrate in the same durable chemical resistant plastic boxes as the rcp multi test kits glass vials amp easier to read colour scalesr includesr r ammonia this advanced colorimetric test has been redeveloped to measure the total ammonia nh3nh4 to an accuracy 015ppm