| to you point i agree there is a lack of "scientific evidence" on topic.. however.. thousands if not millions of people use commercial garlic extract in their tanks on a daily basis...
i think what is is question is the validity of the "beneficial claim". i do however know that based on the amount of people using it, that if you use as directed there is little to no risk of harm. If there was a risk, you would definitely hear about it. and to this date, i have never hear of anything bad happening that could be even remotely tied to the use of garlic extract that was meant for a marine system.
i do however fully respect your opinion and choice.. it is one of wisdom
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