For determining the total hardness in freshwater. Contents: 15ml of test solution, 20ml measurement vial, directions for use.

For determining the ammonium/ammonia value in fresh and salt water.   Tests freshwater 0.0 - 10 mg/l Tests saltwater 0.0 - 5 mg/l Contents: 3 x 15ml bottles of reagent 1,2 & 3, 20ml measurement vial and direc...

For determining the nitrate value in fresh and saltwater Contents:  2 x 15ml bottles of reagent 1, & 2, 20ml measurement vial and directions for use.

For determining the Iron concentration in tap and aquarium water. Contents: 30ml can reagent, 15ml dropper bottle reagent 2,measurement spoon, 20ml measurement vial, directions for use.

For a qualitive, permanent measurement of CO2 in freshwater. Contents: CO2 long-term indicator with suction cup, 15ml indicator solution, colour chart, directions for use.

For determining the calcium concentration in saltwater. This test monitors the calcium level easily and precisely in steps of 20 mg/l (ppm).   Contents:  2 x 15ml of dropper ...

For determining the Magnesium concentration in saltwater. Contents: 3 x 15ml of dropper bottle reagent 1, 3 and 4, 2 x tube reagent 2 and 5, 2 measurement spoons, 20ml measurement vial, directions for use.