> from a reputable dealer and manufacturer.  I would stake my
> health on it

Don't. Fish and people are very different and there are a number of 
substances that can kill one while not harming the other. F.ex. alcohool 
kills fish even at low concentrations but is relatively harmless to 
humans even at 40 proof. This is followed by a very long list of 
substances you likely would not like to drink but fish thrive on (or 
in). Starting with salt water, for example.

Peter
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