Exxodus is an innovative new line of medias from Continuum Aquatics which have tremendous potential to advance biological and chemical filtration. The three different formulas of Continuum’s Exxodus media are each spiked with a different ingredient to boost and enhance the various mechanisms aquarists leverage to manage water quality.
The three different types of Continuum Aquatics’ new media are Exxodus Phosphx, Exxodus BAC and Exxodus Nitryx, each of which is finely tuned to enhance one aspect of aquarium filtration. Exxodus BAC is the most conventional out of the bunch, being a basic media with high surface area for general biological filtration by bacterial colonization. However, Exxodus BAC is doped with aragonite to buffer the pH inside of the pores against the acids produced during biological activity.
Exxodus Phosphx is laced with granular ferric oxide (GFO) to absorb phosphate, and the large nuggets sure will make it easier than ever to handle the media compared to standard pelletized GFOs. Finally, Exxodus Nitryx is spiked with elemental sulfur to encourage colonization by denitrifying bacteria, helping to promote lower nitrate levels in the aquarium.
This is not the first time we’ve seen GFO incorporated into other filter materials, and many aquarium companies do offer pads that are laced with activated carbon, GFO or zeolite for various reasons. However this is the first time we’ve seen Sulfur elevated to this mainstream status, and the first time that GFO has been directly used in a biological media.
This is a very interesting direction for Continuum Aquatics to take their Exxodus medias and it’ll be very interesting to see how these new products perform in real life.