Questions about PH swings, Co2, and fish health - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 09-10-2012, 06:23 PM Thread Starter
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Questions about PH swings, Co2, and fish health

I am currently injecting my tank with pressurized Co2, diffused through an inline diffuser.

With this I am using a Drop checker. During the day, the co2 kicks on with the lights and the drop checker is a light green color.

At night my Co2 kicks off and eventually the Drop checker turns Blue.

I believe this is indicating a changing in PH correct? (as well as the amount of Co2 in the water)

If that is the case, should I worry about the swing effecting the health of my livestock?
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post #2 of 5 (permalink) Old 09-10-2012, 09:15 PM
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No. A swing in pH does not bother the fish or affect their health. KH swings can be a problem, but not pH.

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post #3 of 5 (permalink) Old 09-10-2012, 10:01 PM Thread Starter
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Thanks, just wanted to make sure.

As for the KH, it remains stable
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post #4 of 5 (permalink) Old 09-11-2012, 05:09 PM
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Quote:
Originally Posted by Hoppy View Post
No. A swing in pH does not bother the fish or affect their health. KH swings can be a problem, but not pH.
+1

this is why i don't bother the KH, i use 100% RO and yet to see any dead fish.

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post #5 of 5 (permalink) Old 09-11-2012, 05:32 PM
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Ditto... Ditto:
pH swings due to CO2 are not a problem.

pH swings due to changing levels of minerals can be a problem, but it is not the pH, it is the changing levels of minerals.

For more info look into the way fish regulate the salts and minerals in their cells, and how it is balanced with the water. Osmosis, osmoregulation and similar terms can be a starting point.
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