some products clump and take a lot of shaking to get them evenly distributed.
After you shake and pour out a sample, does it centrifuge to a visible pellet?
I'm wondering if the amount of actual live bacteria is very very small would it show up? ( I think the answer is yes, PCR multiplies whatever is there - but I don't have experience with those technologies.)
Also, if it were a different kind of bacteria than what you are hunting, would it show up on that chart?
"Bio S contains specially selected bacterial strains that create a perfect environment for replication of Nitrospirae and Nitrobacteraceae bacteria which are responsible for the nitrogen cycle."
"creates an environment for..." sounds like it is not a source of those nitrifying bacteria, but is meant to assist them in some unspecified way.