OF 3DM Pro Filter Medium is a trusted biological filter medium used at Stingray, Arowana and Fish Farms.
It is becoming increasingly popular due to the high porosity that enables it to house up to 10X MORE beneficial bacteria than most filter medium in the market. This greatly increases the biological filtration capability of any filter instantly!
But just how porous is the 3DM? We put it to the test...
For more information on 3DM Pro Filter Medium, visit
http://bit.ly/3dmfm