FAQ: A different company claims that their carbon contains no phosphate at all. If Seachem MatrixCarbon™ is so good, why does it still have phosphate?

All carbons are made from organic material (wood, nut shells, etc.), so they inherently contain phosphate – it is unavoidable. If a company claims their carbon contains no phosphate at all, it is either not a carbon (possibly a carbon-like substitute such as Renew™) or the company is practicing some creative wording with regards to their carbon. MatrixCarbon™ has the lowest leachable phosphate on the market; it will add less phosphate to your water than any other carbon available.