It is common knowledge that probiotic bacteria is good for the human body and is found naturally in the environment. TankTechsRx for Septic Systems uses a mixture of 14 to 17 naturally occurring probiotic bacteria in a patented fermenting process that takes up to 30 days. These same bacteria have been used by humans for thousands of years in food preparation and health applications with beneficial effects. Our blend is designed to outcompete all the pathogenic and harmful bacteria at the food source. It does not attack or kill other bacteria, it just outnumbers them in a process called quorum sensing, leaving the host in a healthy condition functioning properly. None of our bacteria have been altered or genetically modified in any way. It is GMO free and OMRI certified. We know of no know harm being caused by our bacteria strains and many helpful benefits to whatever environment it is growing in.