CaribSea A.R.M. Extra Coarse Calcium Reactor Media 1 gal

CaribSea A.R.M. Extra Coarse Calcium Reactor Media 1 gal

Marsoni

M251S

$41.99

Get it in 3 business days with 1 day shipping. Friday, May 29

CaribSea A.R.M. Extra Coarse Calcium Reactor Media 1 galARM Extra Coarse 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. ARM Extra Coarse contains: 275200 ppm Calcium, 590000 ppm Carbonate, 2200 ppm Strontium, and 2000 ppm Magnesium.

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Reviewed in the United States on May 2, 2026