I have used it many times over the years on different tanks in both my home and a retail setting with great success. Also following the instructions to the letter. In my at home cases it worked wonders for the initial set up of a new tank where I'd inevitably get an outbreak of slime, after that first dose i never saw it again with good maintenance practices.
Retail tanks seem to have a case every few months, i always figured it was coming in due to turn over of livestock.
Retail tanks seem to have a case every few months, i always figured it was coming in due to turn over of livestock.