Phosphates are particularly important for the growth and development of plant roots, and hence are one of the most common fertilizers used in agriculture. In addition, phosphates are usually utilized in detergents and are needed, ...
The Hanna Checker Kit includes 4 of the most commonly used Hanna Checkers used in the Marine Aquarium.
Phosphate Checker - includes reagent for 6 tests
Calcium Checker - includes reagent for 15 tests