ARM™

Available in fine, coarse, and extra coarse these reactor medias are the industry standard!

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European Vacation - A look at some reef aquariums from the other side of the pond. Here author, photographer, and all around awesome guy, Scott Michael, recounts a trip to Europe in 2005 highlighting his trip were several great reef tanks.

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ARM™ Fine

Contains nearly 50 times the strontium of other brands (7390 ppm). It also contains 381,000 ppm Calcium, 590,000 ppm Carbonate, and 1050 ppm Magnesium. ARM™ Fine has the highest solubility of any reactor media available (metastable at 8.2) so typical CO2 consumption is much lower. Works with many Tunze, Precision Marine, Korallin, and Schuran reactors.
1 gal. #00525 - 2/cs
50 lb. #00555 - 1/ea

PurpleUp Bottle

ARM™ Coarse

Calcium reactors have evolved into several types that require different media sizes. Because of this we now offer ARM™ Coarse for rapid upflow type reactors that have become so popular. This coarse grade of ARM™ will prevent the clogging and upkeep associated with fine media and these reactors. Works with many Tunze, Precision Marine, Korallin, Schuran, Coralife, Knop, Coral Vue, Vorex , Octopus, and Pacific Coast reactors.
1 gal. #00531 - 2/cs
50 lb. #00551 - 1/ea

PurpleUp Bottle

ARM™ 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. Works with many Tunze, Precision Marine, Korallin, Schuran, Coralife, Knop, Coral Vue, Vorex , Octopus, and Pacific Coast reactors.
1 gal. #00529 - 2/cs
50 lb. #00559 - 1/ea

Frequently Asked Questions

In what type of reactor would I use ARM™?
Please see descriptions above for suggestions.

Will ARM™ contribute to the phosphates in my tank?

All calcium reactor media have the potential to release small amounts of phosphates. ARM™ is made of extremely pure forms of aragonite so it is much lower in phosphates than other reactor media.