I think there will always be a question of the effectiveness of preparations because all of these concoctions have a shelf life and to my knowledge, these things aren't dated like foods
They do all have a "Use By" date stamped on the bottle somewhere if you look hard enough, all th foods and conditioners do.
I also see poster(s) here comparing bio-seeds to water conditioners which are very different.
I'll assume that was me with the BioActive Tapsafe? But thats probably because it has the benficial bacteria in it....
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All that aside, these products are guaranteed to work... if you have the same water paramaters as they did in the lab when making the product. Otherwise the company could be done for false advertising and all sorts. So no one can say it doesnt work for sure, only that it didnt work in your own tanks.

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