Maybe so.. I did have positive results, could be completely unrelated to using the product. It is vinegar based I believe.Vibrant is a snake oil, pretty big snake in this case.
I will take it as a grain of salt, the manufacture claim isBased on the manufacturer the vinegar is 0.5% of the total volume and meant only as a preservative. I have some persistent bubble algae and starting to use it now, will report on results.
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