Any reason why CO2 would cloud water? - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 03-29-2010, 08:36 PM Thread Starter
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Any reason why CO2 would cloud water?

Is there any reason why CO2 would cloud the water. Earlier today, before CO2 injection started, my water was crystal clear. Now, after the CO2 began my water is a little cloudy. Is that normal?

FYI, I didn't have any RO water last night when I was working on the aquarium, so I used about 5 gallons of tapwater instead (29 gallon tank). Do you think it's phosphates from my tapwater?
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post #2 of 9 (permalink) Old 03-29-2010, 08:50 PM
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It may not be your CO2, but just a naturally occurring bacterial/algal bloom.

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post #3 of 9 (permalink) Old 03-29-2010, 09:22 PM
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I know you use compressed CO2, so it can't be yeast or other gunk.. If you didn't use CO2 until now, it would be interesting if it was a different type of bacteria that preferred the lower pH out-competing the existing nitrogen/whatever bacteria you have..

I think I noticed more cloudiness after adding CO2 as well. I also think if I look at my tank wrong, it can go cloudy..

Dunno. I got tired of it and invested in UV.


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post #4 of 9 (permalink) Old 03-29-2010, 09:40 PM
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probably just bacterial as the cycle probably isn't complete.

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post #5 of 9 (permalink) Old 03-30-2010, 01:05 AM Thread Starter
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Actually, after doing a little research, I think this may because I dosed iron today. Normally, that's not a problem, but last night I did a small water change $15%) and I was out of RO water. I used our local tapwater instead, which has high concentrations of phosphates. I believe when you mix iron and phosphates, you get cloudy water.

Is that correct?
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post #6 of 9 (permalink) Old 03-30-2010, 04:24 AM
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There are several reasons for CO2 to create cloudiness.

The iron and the tap water you added last evening, right. If so any cloudiness should have disappeared by the morning when you added CO2.

The reason most probably was the presence of calcium and magnesium salts in your tap water were converted to the more insoluble carbonates which precipitated out to cause the cloudiness.

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post #7 of 9 (permalink) Old 03-30-2010, 03:24 PM
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Iron precipitation! MY first thought after reading the title. I knew you just started EI dosing, so I figured your dosing caused the cloudiness.


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post #8 of 9 (permalink) Old 03-30-2010, 03:55 PM
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I have been having this same problem. I do my WCs on Sundays and use tap water. I dose macros right after I finish My WC. Then dose macro's again Tues and Thursday. Monday, Wed, and Friday is Micro's along with extra FE. I wonder if switching the days might help..... Dosing Micros first on Sunday with the WC?

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post #9 of 9 (permalink) Old 03-31-2010, 10:27 AM Thread Starter
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Quote:
Originally Posted by tyler79durdan View Post
Iron precipitation! MY first thought after reading the title. I knew you just started EI dosing, so I figured your dosing caused the cloudiness.
Yep, yesterday I dosed a different combination of fertilizers and that didn't affect the water clarity. Today, I have to dose iron and my micro nutrients (Seachem Flourish) again. I'll see if the same thing happens.
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