Salifert Calcium Test Kit Powerheads & Gyres Colored varieties are typically a

Colored varieties are typically a beautiful green shade

000 mg/L ferrous iron gluconate

Doc Wellfish's Long Handled Glass Aquarium Algae Scraper

Compare the colour result to the included nitrite colour card

Compatible with standard HiBlow HP-60 air pumps

Salifert Calcium Test Kit Powerheads & Gyres Colored varieties are typically aSalifert Calcium Test Kit The Salifert Calcium Test Kit is a titration style aquarium test kit for measuring calcium levels in reef, marine, freshwater and pond water with clear colour change results. Calcium Testing for Reef Stability Calcium is one of the major elements used by stony corals, coralline algae, clams and other calcifying organisms. Regular testing helps reef keepers maintain stable calcium levels and make better dosing, water change