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Continuum Exxodus BAC Brick (1 Brick)





  • Description
  • Directions

Exxodus•BAC is an extremely porous filtration medium designed to be used in all aquariums and aquatic systems with a pH of 7.5 or higher, for bio-filtration.

It literally has the highest surface area of any filtration medium in the world, by far, yet it provides excellent flow characteristics!

Each liter of Exxodus•BAC provides over 71,000 square feet of useable surface area, internally, for bacterial colonization, providing for nitrification and vast amounts of anaerobic or anoxic surface area to foster denitrification, as well.

One brick provides about 100,000 square feet of useable surface area for bacterial colonization.

Doped with real aragonite for pH control at bacterial sites. Exxodus•BAC will reduce the levels of toxic ammonia, nitrites and nitrates, as well as phosphates and organic pollutants in all aquaria.

It may be used as your primary or only bacterial filtration medium.

It works extremely well in systems of all sizes. It is particularly well suited to reef systems with live rock including FOWLR systems and will not foster problems that bio balls may.

Use in an external biological filter of any type. Works well submerged, or under gravel or sand, or in a drip system.

For best denitration, restrict water flow through material. For best nitrification increase water flow through the material.

One Exxodus•BAC brick will provide nitriication for about 1,000 U.S. gallons, ( 3,800 L ) of aquarium volume.

Rinse brick gently in purified tap water or aquarium water.

Pre-seed the product by placing it in a plastic container, submerged in aquarium water, and adding the recommended dose for your aquarium size of the aforementioned bacterial products (BacterClean or BacterGen).

Allow the product to remain in this soak for 12 to 24 hours, stirring gently occasionally or agitating the liquid by pouring out and back into the container, gently. Place the seeded Exxodus•BAC plate into system.

The use of a pre-filtration filter floss, sponge or other mechanical pre-filtration is recommended to prevent fouling in flow through applications.


Caution: Do not fluidize or allow to abrade against moving parts. Material can wear down due to mechanical action, and produce dust and fines. Keep out of reach of children. Not for human consumption. If ingested drink water, consult with a physician.