Nutrafin KH Reagent Refill - 15 ml

Nutrafin KH reagent refill is for use with Nutrafin Carbonate and General Hardness Test. Carbonate Hardness (KH) levels need to be tested on a regular basis because they fluctuate over time and can negatively impact the pH balance of the aquarium water.
Format : 15 ml (0.5 fl oz)