Xport-PO4, Xport-NO3 and Xport-Bio are some fancy new aquarium filtration media from Brightwell Aqiatics which are endowed with some higher-than-usual surface areas. Using some voodoo called ‘NanoIntelex Technology’ the new Xport medias boast super dense surface areas that encourage biological nitrification (Xport-Bio), denitrification (Xport-NO3) and phosphate adsoprtion (Xport-PO4).
In the case of Xport-PO4 one gram of the media can remove 30-100mg of phosphate, which is more or less in the same league as Bio-Phos 80 and PO4X4 granular ferric oxides. AS for Xport-Bio and Xport-NO3 these are just a new form of really dense biomedia so you’ll still need to see them with the appropriate bacteria cultures and supporting additives.
