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post #1 of (permalink) Old 03-15-2007, 02:03 PM Thread Starter
fredyk
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Question CO2 and calcium question

There is one area about which I am uncertain, pertaining to CO2 and calcium.

Salwater aquarists use CO2 for calcium reactors. So one would think that CO2 is having an effect on calcium in our freshwater planted tanks, dissolving the calcium.

How does this affect the water hardness, and how would it affect snails and shrimp?
For example, I do weekly water changes and use CO2, but the nerites snails shells have large fissures in the shell, and so have been moved to another tank without CO2.
Does one need to add calcium, oyster-coral shells, or do water changes to compensate for dissolved calcium? I'm just curious about the relationship about CO2 and calcium disolving.

Mark

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Last edited by fredyk; 03-15-2007 at 10:24 PM.
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