Can plants experience calcium deficiency in water with high GH? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 04-22-2007, 01:45 AM Thread Starter
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Can plants experience calcium deficiency in water with high GH?

If the water has high GH value, say 200+ppm, can plants experience calcium deficiency? Would it be possible that the water has high ion of magnesium but relative low on calcium?

Just curious.
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post #2 of 5 (permalink) Old 04-22-2007, 02:23 AM
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It's very possible.
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post #3 of 5 (permalink) Old 04-22-2007, 06:09 AM Thread Starter
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Hey rex, what would be a good way to test calcium?
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post #4 of 5 (permalink) Old 04-22-2007, 06:28 AM
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calcium deficiency is pretty rare if you do frequent water changes. It might be some other deficiency that seems like calcium like magnesium, boron or something.


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post #5 of 5 (permalink) Old 04-22-2007, 12:10 PM
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You can buy calcium test kits for saltwater. Not sure if they work for freshwater or not. Easy way would be to dose some calcium.

But most likely as mistergreen said it's more likely to be a shortage of something else.
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