Flourish and water chemistry? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 09-07-2011, 03:05 AM Thread Starter
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Flourish and water chemistry?

I recently started dosing one of my tanks with Flourish Comprehensive and Flourish Excel, and I also added Flourish root tabs. I am wondering what (if any) changes this will make to my water parameters. If someone could please let me know what to expect from these products I would certainly appreciate the info. Thanks!

I even have duckweed in my water bong!
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post #2 of 6 (permalink) Old 09-08-2011, 04:08 PM Thread Starter
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Can anyone answer this question? In particular I want to know if Flourish Excel, like injected CO2, changes the pH of my tank. Thanks!

I even have duckweed in my water bong!
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post #3 of 6 (permalink) Old 09-08-2011, 04:25 PM
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CO2 lowers the pH of a tank because some of it combines with water to form carbonic acid.

Excel is often thought of as "liquid CO2", but that's really incorrect. It supplies a limited amount of carbon to plants through an alternate means, and doesn't produce CO2 at all. So you will not see a significant pH drop. Nor will it affect a drop checker.

If you have a good pH meter, you might see a very small pH drop. That's because Excel is acidic. But it's too weak an acid, and the dosage too small, to detect the change with a pH test kit.
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post #4 of 6 (permalink) Old 09-08-2011, 10:30 PM Thread Starter
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Thanks DarkCobra! I did make the mistake of thinking of Excel as 'liquid CO2', but now I know better.

I even have duckweed in my water bong!
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post #5 of 6 (permalink) Old 09-08-2011, 11:52 PM
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Excel works very well on low light tanks but can get expensive as you tank gets larger. You should see little to no change in parameters.


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post #6 of 6 (permalink) Old 09-11-2011, 05:03 AM
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The products you listed should not alter water parameters at all.


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