0870 850 6138

Caribsea A.R.M Extra Coarse 1 Gallon

Brand :: Caribsea


This item is in stock and available for immediate delivery. Orders placed before 2pm where all items are 'In stock' will be dispatched the same day.

Once this item has been dispatched you will be provided with full tracking details.

This item will be dispatched via a 3-5 day courier serivce. You can also upgrade to next day delivery for as little as £2.00.

You will be able to upgrade your delivery service upon checkout.

Found it cheaper? Price match here!

If you have found the product cheaper elsewhere then we'll do our best to match the price. Simply fill out our simple form including the competitors URL and we'll do the rest. Please read of terms for full info.

Buy this item and earn 22 Charterhouse Points

Please red our FAQ to get full info on how the 'Charterhouse Points' scheme works.

Awesome! This product has been added to your cart

A complete reactor media containing not only calcium and carbonate, but essential trace elements as well. In fact A.R.M. has nearly 50 times the strontium of other brands (7390 ppm).

A.R.M. is processed for immediate use, no rinsing required, and has double the surface area of regular aragonite. Precision grading (10-15 mm) allows for maximum carbon dioxide penetration, and the exclusion of gastropod shells insures the lowest phosphate (less than 1/10 of 1 ppm) and silica (about 1/2 that of other brands) content. This grading also carries in the highest concentration of Halimeda incrassata, an aragonite so pure it has been used as a laboratory standard.

  View all Caribsea products
  Go back to the Caribsea category

Customers also purchased

  • Aqua Medic HR 400 Hydrocarbonate Reactor

  • TMC V2Pure Active Carbon Block Filter

  • Salifert Coralline Amino Acids 250ml

  • Hanna Pocket Checker for Marine Alkalinity Testing

  • JBL ProFlora SafeStop (Safety Valve)

  • Red Sea Seawater Refractometer

  • Hanna Marine Calcium Handheld Checker

  • Gamma Marine Quintet Blister Pack 100g

  • Korallen Zucht Coral Snow 250ml

  • Aquarian Marine Flakes - 25G

  • Korallen Zucht ZEOvit 1000ml

  • Korellen Zucht Potassium Iodide / Fluoride Concentrate 50ml

Product Reviews

Review :: Caribsea A.R.M Extra Coarse 1 Gallon

Submited By: malcolm nunn,  Friday 02 August, 2013

  Does exactly as it says on the tin (or tub :) )... perfect for medium to large reactors and I've found I don't need to dose additional strontium .  

Review :: Caribsea A.R.M Extra Coarse 1 Gallon

Submited By: David Hollinshead,  Thursday 21 June, 2012

  A good mix of course coral bit which is great to use in a calcium reactor- a good price for what you get- I was expecting a lot less.