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Are cement bricks toxic?
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To: Aquatic-Plants at actwin_com
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Subject: Are cement bricks toxic?
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From: buddy wiese <buddyw at umich_edu>
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Date: Mon, 23 Sep 96 16:20:11 -0400
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In-Reply-To: Your message <199609230739.DAA05743 at looney_actwin.com> of Mon, 23 Sep 1996 03:39:01 -0400
I am planning on landscaping my 130 gallon tank. I wanted to
elevate the back of my tank with cinder blocks so that I could
incorporate plants into my aquarium that emerge out of the water (river
hiasynths (sp?) or arrowhead in particular.) An added bonus would be
that the fish that I plan to put in the tank could have nice little
caves to hang out in.
My questions:
Do bricks (either cinder blocks or the red ones) leach any
toxins into the water? If they do, can I pre-soak, changing the water
several times over the period of a week to remove the toxins?
I suspect that cinderblocks will raise the pH of the water, but
I am not sure how much. I am shooting for a tank pH of 7.5 to 8.0, will
the bricks raise the pH much above this? I plan to purchase a CO2
cannister as a supplement for the plants - perhaps the two will offset
each other.
Has anyone used bricks in their tanks without killing their
fish/plants? I welcome you comments and advice.
TIA
buddy wiese
University of Michigan