Nutrafin Nitrate Reagent #2 Refill - 10 ml

Nutrafin Nitrate reagent #2 refill is for use with Nutrafin’s Nitrate Test (0.0-110.0 mg/L). Nitrate should be tested on a regular basis as a measure of pollution in the aquarium and to determine if a water change is necessary.
Format : 10 mL (0.3 fl oz).