Hagen

Nutrafin pH High Range reagent refill, 15 mL (0.5 fl oz), for use with the Nutrafin pH High Range Test (7.4 - 8.6). pH levels should be
monitored regularly as they have a direct effect on the well-being and health of the fish.

Nutrafin Calcium reagent #3 refill is for use with Nutrafin’s Calcium Test. Marine reef aquariums, especially those containing hard corals and strong growth of coralline algae, absorb calcium at a rapid rate, often requiring daily testing to ensure that the calcium levels remain at an optimal level for the aquarium inhabitants. Format: 18 mL (0.6 oz).

Nutrafin Ammonia fresh and saltwater reagent #1 refill for use with Nutrafin’s Ammonia Test (0.0-6.1 mg/L) for Fresh and Saltwater. Weekly testing of ammonia levels will indicate whether the biological filter activity is working efficiently or whether the ammonia is reaching dangerous levels. Format: 15 mL (0.5 oz).