Red sea coral colours pro test kit contains test kits for all the elements associated with coral pigmentation iodine potassium and ironred sea iodine pro test kitelement iodineaccuracy 001ppmrange 0 009ppmtest type colorimetricnumber of tests 50red sea potassium pro test kitelement potassiumaccuracy 12ppmrange 150 450ppmtest type titrationnumber of tests 40red sea iron pro test kitelement ironaccuracy 005ppmrange 0 09ppmtest type colorimetricnumber of tests 50all pro test ki