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Help, CO2 overflow disaster
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feralgirl
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Joined: 02 Feb 2005
Location: Bristol, UK

PostPosted: 2007.01.28(Sun)7:36    Post subject: Help, CO2 overflow disaster Reply with quote

Hi all,
My CO2 injection has just overflowed into my tank coz I put too much yeast in the mix. I think only about two tablespoons of the mixture went in and I caught it after about 10 minutes I think. I've done a 50% water change but the tanks still dead murky and the pH is up from a normal of about 7.5 to 8.5. Should I be putting something like bicarbonate of soda in to neutralise it? I assume I need to keep doing water changes until the pH is back down but how often and how much? So far the inhabitants all seem OK but I'm still dead worried. Thanks in advance.
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hedgelj
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Joined: 02 May 2006
Location: Ohio

PostPosted: 2007.01.28(Sun)9:46    Post subject: Reply with quote

What are the inhabitants of your tank? That will help determine how they will do from the pH swing.
DO NOT add the sodium bicarbonate. That is a basic substance and could increase the pH further. The best solution I see is continuing to do water changes. Depending on the size of your tank, do the largest ones you can comfortably do until you notice the pH coming down. The murkiness is probably from the yeast/sugar mixture continuing to grow in your tank.
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feralgirl
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Joined: 02 Feb 2005
Location: Bristol, UK

PostPosted: 2007.01.28(Sun)10:37    Post subject: Reply with quote

Thanks for the reply. Tank flora and fauna, stats, all details are on my profile.
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Bob
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Joined: 16 Jun 2006
Location: UK

PostPosted: 2007.01.28(Sun)10:48    Post subject: Reply with quote

Quote:
My CO2 injection has just overflowed into my tank coz I put too much yeast in the mix.


Being a bit picky here, it wasn't that you put too much yeast in, it was more likely you didn't have enough free space in the top of the bottle to allow for expansion.

When I do a 2 liter bottle, I only use just over half of the space with mixture.

When you add yeast to sugar and water, the yeast spends the first few hours multiplying, if you added more yeast, they would multiply less.



Bob
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hedgelj
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Joined: 02 May 2006
Location: Ohio

PostPosted: 2007.01.28(Sun)18:02    Post subject: Reply with quote

feralgirl wrote:
Thanks for the reply. Tank flora and fauna, stats, all details are on my profile.


I see what I think are the set ups to 2 tanks and one set of chemical levels. It might be simpler if you stated which tank, the current levels, and its inhabitants.
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Osprey
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Joined: 15 May 2006
Location: Okotoks, AB

PostPosted: 2007.01.28(Sun)22:18    Post subject: Reply with quote

Not that it helps now, but to prevent it from happening a second time... add a bubble counter bottle to your system. Get a second pop bottle, smaller, filled half-way with water. The hose from the yeast mix goes down into the water in the small bottle, and a second hose transfers the gas from the small bottle into your diffuser. No chance for overflow, and the bubbles give you a good indication of how quickly your reactor is producing CO2.
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