Nitrate nitrite test kitr red searsquos nitrate nitrite test kit provides either 160 nitrate or 100 nitrate plus 60 nitrite advanced colorimetric tests for marine aquariums part of the marine care program this kit is essential during the maturation of all marine and reef aquariums and is suitable for ongoing algae management with red searsquos no3po4 x in fish only systemsr important notes for using the marine care program test kitsr r before testing clean the glass vials and the large