Algae control test kit from red sear containsr nitrate test kit 100 testsr phosphate test kit 100 testsr the red sea algae control kit comes with high resolution colorimetric comparator tests for the exceptionally high resolution measurement of nitrate and phosphater the nitrate amp phosphate tests are essential for the accurate dosing of red seas no3po4 x biological nitrate amp phosphate reducer which is part of the red sea reef care programr the vials are even made from opti whi