Nutrafin Iron Reagent 1 Refill, use with Nutrafin Iron (0.0-1.0 mg/L) Test Kit.
It is important to monitor iron levels in order to maintain aquariums that are abundant with plants. It is recommended to test at a frequency that maintains the iron level between 0.25 to 0.5 mg/L.
Size: 7.5 mL (0.2 fl oz).,
