Seachem Laboratories MatrixCarbon Activated Carbon Media 4 L

For aquarium keepers running larger systems or stocking up, Seachem Laboratories MatrixCarbon comes in this generous 4 liter size. It is an activated carbon meant to help keep your fish in clear, clean water. Seachem describes MatrixCarbon as a truly unique activated carbon, formed as a spherical bead for optimum hydrodynamics, and the brand says it will not pack down the way many carbons tend to. That bulk volume makes it a fit for anyone filtering a lot of water at once.

• The 4 liter volume gives you a substantial supply, well suited to larger tanks, multiple filters, or stocking up for the long haul.
• It is formed as a spherical bead, which Seachem says is shaped for optimum hydrodynamics as water passes through.
• Because it will not pack, the brand notes it permits maximum water flow and contact with its binding sites.
• Seachem points to a high density of macroporous binding sites as the engine behind its filtration.
• The brand says MatrixCarbon has a very low ash content, reflected in its minimal impact on pH.
• Seachem notes that even when added to distilled water, it does not raise pH above 7.0.
• The brand states it has the lowest detectable leachable phosphate content of all major carbon brands it tested.
• Seachem claims it outperforms other high grade carbons by at least two-fold for total capacity to remove aquarium organic matter.
• The bead shape is meant to keep flow moving even when the carbon is packed into a busy filter.
• It is designed to be loaded into your filter so water can flow through and contact the carbon.
• It is sold as a single 4 liter unit, ready for bulk use across your filtration setup.

Activated carbon works quietly between water changes, helping to keep dissolved organics in check so your fish enjoy clearer water. Position MatrixCarbon in your filter where flow can move through it freely, and let it run its course. With this much carbon on hand, you can refresh several filters or keep a big system supplied without reordering as often. For fish keepers managing bigger systems who want a carbon backed by the brand's own performance claims, this 4 liter Seachem MatrixCarbon is a practical, go-the-distance choice.