Calcium Questions? - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 11-21-2006, 05:57 AM Thread Starter
 
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Question Calcium Questions?

Excuse my ignorance, , but I am a newby to all this chemistry stuff. Can someone please explain the difference between calcium carbonate versus calcium sulfate versus calcium chloride in simple terms?

What are their primary applications? Thanks.
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post #2 of 4 (permalink) Old 11-21-2006, 12:54 PM
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Calcium carbonate will raise both gH and kH and is almost impossible to dissolve in water.

Calcium sulfate will raise gH and is hard to dissolve in water.

Calcium chloride will raise gH and is very easy to dissolve in water.

All of these are used to modify water chemistry by raising hardness.
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post #3 of 4 (permalink) Old 11-21-2006, 01:59 PM
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Rex, thanks for that clarification.

If ones interest in calcium is to suppliment it for the benefit of Freshwater snails, Invertebrate and crustaceans in your tank, what calcium formulation would be best or avoided.

how well does Calcium Nitrate work,
so instead of dosing KNO3 for Nitrates,
could I dose Ca(NO3)2 instead and
get the Calcium bonus I need, since
I already get Potassium from K2SO4.


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Last edited by spypet; 11-21-2006 at 05:50 PM.
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post #4 of 4 (permalink) Old 11-21-2006, 02:51 PM Thread Starter
 
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OK, again with the ignorance, or giving myself a break, the inexperience.

What exactly does it mean when it will not dissolve in water? Do you have particles floating at the surface? Does the accumulation of undissolved particles cause problems over time? Is there any calcium added when using CSM+B Plantex?

And finally, I have a kH of 3 and a gH of 4. Have noted some curling/deformity on my A. Reinickii so suspect a calcium deficiency. Yes/No?

On another note, how do you test for magnesium? I cannot find a test kit for it.

Thanks.

P.S. - Rex, I like your spelling of Oregon. Maybe non northwesterners could say it right if we spelled it that way!
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