Salifert Calcium Aquarium Test Kit Quickly and accurately measure the

Quickly and accurately measure the Magnesium concentration in saltwater aquariums

Potassium (K)

35g) mix or 3/4 cup of only carbon (Approx 105g)

remove the old bottle(s)

Salifert Calcium Aquarium Test Kit Quickly and accurately measure theGet accurate, easy to read calcium readings in minutes! Trusted by discerning reefers for years, Salifert Test Kits feature some of the easiest to read results available. Their test kits include easy to follow instructions and straightforward, accurate results. Salifert test kits are also some of the most economical; the Salifert Calcium Test Kit will typically deliver upwards of 50 tests per kit. Note: Calcium Test kit is rated for 50 100 tests. The