I thought I would try Brightwell Aquatics XPORT BIO BRICK. I rinsed it well with aquarium water per instructions and have been soaking it for 2 days in a bucket of aquarium water with Microbacter. Issue and my concern is that the Bio Brick is is floating, so how the heck can Brightwell claim "Highest porosity and largest usable surface area, per unit weight or volume, of all filtration media available anywhere" if does not even allow water to flow through the media, or even penetrate it? Anyone else have, or tried their XPORT Bio Bricks?