Are cement bricks toxic?
To: Aquatic-Plants at actwin_com
Subject: Are cement bricks toxic?
From: buddy wiese <buddyw at umich_edu>
Date: Mon, 23 Sep 96 16:20:11 -0400
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.
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
Has anyone used bricks in their tanks without killing their
fish/plants? I welcome you comments and advice.
University of Michigan