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I would caution about using a pyrite solution in an aquarium.  You are
correct it is the leading cause of acid mine drainage.  Ever see a stream
that has that problem?  The Sulfur in the Pyrite combines with the water to
make acid, dissolving more pyrite....ect.  The problem is that the iron
precipitates out of the solution and turns the stream red, rocks, leaves
everything.  The streams have crystal clear water because everything is
dead, and covered with red iron oxide.  I am not sure if this would occur in
an aquarium but it is food for thought

Wed, 17 Jul 2002 15:35:37 -0400
From: "Hopkins, Samuel" <Samuel.Hopkins at marconi_com>
Subject: UREA?

Hi Everyone,

	Hopefully everyone is having a great Wednesday. Hey, I've been
collecting chemicals for PMDD. The first trace mix I bought had copper and I
figured I'd try to find one without copper since it's so bad for the fish. I
found a product at Lowes called Ironite. It contains Urea as the nitrogen
source. I found a post that stated urea is a form of ammonia. I also found a
post from someone that they added urea to a planted tank and the plants grew
simular to adding nitrate. I assume if it's in low enough concentration the
plants would suck it up and your biofilter would consume the rest before
your fish bit the bullet. Anyone have any ideas? 

Also this "Ironite" gets it's iron from pyrite and iron sulfate. Anyone know
if this is bad? I know this is how Acid Mine Runoff is formed so I guess
it'd perc out pretty quickly. No mention of it being chelated.


Jim DeAngelo, CFM 
Dewberry and Davis 
METS Division 

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