PH test Colombo
Use for an accurate measurement of pH (acidity) in your pond. pH levels need to be stable in any pond containing Fish, particularly Koi Carp.
Colombo liquid tests
Liquid tests for accurate measurement of pH acidity), KH (Carbonate hardness), GH (total hardness, NH3 (ammonia), NO2 (nitrite), NO3 (nitrate) and PO4 (phosphate). to the highest requirements, are easy to use and give a reliable measurement result.