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Insane Ph spike! What to do? *pics*

This is a discussion on Insane Ph spike! What to do? *pics* within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Originally Posted by JDM CO2 in water increases the acidity= pH goes down. Plants consume CO2 during photosynthesis = pH goes up Plants produce ...

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Insane Ph spike! What to do? *pics*
Old 03-07-2013, 03:39 PM   #11
 
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Quote:
Originally Posted by JDM View Post
CO2 in water increases the acidity= pH goes down.

Plants consume CO2 during photosynthesis = pH goes up

Plants produce CO2 in darkness through respiration = pH goes down

Bubblers, breaking the water surface off gasses CO2 = pH goes up

Jeff.

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Brandy13 (03-07-2013)
Old 03-07-2013, 03:46 PM   #12
 
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There seems to be alot of misunderstanding here. Let's just kinda clear the air on a few things.
I'm a breeder not just a keeper. My levels matter. My GH and KH can't be tested at this moment. I used the regular Ph test the FIRST time I tested my tap (and yes it was aged tap). My ph was ok around 7.4 Now it's high range hence using the high range test... I know there are a few other things a should but I'm at work.

I'll update the thread in a bit

Thanks for the helpful responses I hope this thread helps others as well.
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Old 03-07-2013, 05:09 PM   #13
 
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Originally Posted by smit3183 View Post
Plants raise ph? Never heard of that before

actually there is an interaction bewteen co2, carbonate (as in carbonate hardness), and pH.

As JDM reported with lights on pH rises and with lights of it drops down.

In my experience with sufficient plants what happens is that the tank can become a net sink of co2 and source of o2 each 24 hour period.

I have had tanks both fw and marine that had low pH untill I added plants. After adding the plants (marine macro algaes) the lowest pH (at night) was still much higher then the highest pH before adding plants. One marine tank went from a ph of 7.5 (high rang test kit) to over 8.4 in just a few days after adding macro algaes.

But that's just my .02
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