Water test set for accurately determining three key water quality parameters - Ammonia, Nitrite and PH Set contains test vials instruction booklet and dosage syringe. Liquid kits give accurate and easy to read results. Instructions contain good general advice on water quality Why Test As with all fishkeeping the quality of the water within a pond is vital for the health and survival of the fish and plants. Poor water quality will result in your fish behaving un-naturally, showing poor colouration and being susceptible to disease, while any plants present will fail to grow and become discoloured. The following aspects of water quality are the most likely to cause problems in the pond:- pH- Nitrite (NO2)- Ammonia (NH3/NH4+) With the TetraPond tests you have an easy and accurate means of measuring these parameters, allowing you to detect and correct water quality problems before they adversely affect your fish.