Description

A High-Magnesium Calcite Aragonite Blend

A high magnesium reactor media. ARM™ Extra Coarse is still a complete reactor media containing not only calcium and carbonate, but essential trace elements as well. (70#/ft3)

Quick Facts

• 275,200 ppm calcium
• 590,000 ppm carbonate
• 2,200 ppm strontium
• 2,000 ppm magnesium