On Sat, 30 Oct 2004 23:43:25 +0200, Libor Striz wrote:

> Derek > Sat, 30 Oct 2004 08:48:15 -0500 wrote ...
>
>>On Sat, 30 Oct 2004 10:33:57 +0200, Libor Striz wrote:
>>
>>> It is used often in reagents for sweet water aquariums
>>> that prepare fresh tap water usable for fish.
>>> (chelating metals like copper, iron, lead etc. )
>>
>>True, but then, many things we use to prepare our aquariums for fish
>>are labeled "Do Not Use On Fish For Human Consumption."
>>
> I have not read it on things for my fish...
> And on fish FOR human consumption they are often used in higher
> concentrations ( like methylene blue is(was?) used )
> as for aquarium fish.

Almost everything I have upstairs in my "tool box" for our small
aquarium is marked with the warning.

--
Derek

Until you have the courage to lose sight of the shore, you will not
know the terror of being forever lost at sea.