The APS MBBR is built on the best established principles from the industry that have been proven for decades... with an APS twist.  The most costly portion of operating an MBBR is the aeration.  So APS has brought its superior aeration design from the lobster industry and adapted it to the MBBR to create an MBBR that is superior in energy savings, water movement to eliminate dead spots or clumping of media, and in delivery of oxygen to the nitrifying bacteria.  What this means is a highly efficient ammonia-eating machine with no moving mechanical parts in the water and the lowest energy consumption of its class.