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Old 03-11-2016, 07:53 AM   #1
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Diy co2

Just make my CO2 with Yeast & Baking Soda. It's running smoothly but 1 question. Can I switch it off at night and will it build-up pressure and cause the bottle to explode.
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Old 03-17-2016, 10:42 AM   #2
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Hi, welcome to the forum

I've never done DIY CO2 but would imagine the pressure would build-up if not off-gassed.
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Old 03-17-2016, 07:34 PM   #3
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Yes, the reaction does not stop, if you do not allow it to expand, you could/will blow the bottle up. The smell is terrible too. rotten alcohol. Also, if you do not have a check valve in the system, you could also potentially back drain your tank onto your floor. (as if a blown up bottle isn't enough.)
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Old 03-17-2016, 09:25 PM   #4
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With a yeast based system you can let it bubble into the tank 24/7. Excessive CO2 should my be an issue as the output is generally low. If you can concerned, you can hook up an air pump and powerhead to a timer and set it to run at night.
If you want a DIY CO2 system you can shut off, look into citric acid. Unlike yeast, it is a chemical reaction and valves are used to control the amount of reactants and amount of CO2 produced.


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Old 03-17-2016, 10:08 PM   #5
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Thanks, I just turn to use Citri Acid on the D501 kit. Everything is working smoothly and I control the output and shut it off after 8 hrs running. And now I would like to DIY a chiller
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Old 03-28-2016, 05:11 AM   #6
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Need help. What and how to cure my Tetra Cardinals disease. Discolouration spot appear on the body and slowly spread through out the whole body and kill the fish.
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Old 03-28-2016, 12:28 PM   #7
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This is a diy thread, start a new one in the fish diseases section. Hope they make it.


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Old 03-28-2016, 01:41 PM   #8
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Quote:
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Need help. What and how to cure my Tetra Cardinals disease. Discolouration spot appear on the body and slowly spread through out the whole body and kill the fish.

If really is neon tetra disease there is little in terms of treatment options. But there are several diseases that can mimic it's symptoms. So try quarantine and some antibacterial meds. If bacterial would mean overall tank conditions are also poor. So water testing and water changes.


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Old 06-06-2016, 03:09 PM   #9
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Please explain the citric acid C02 recipe and delivery. Thinking of adding cheato to my refuge but read that it needs C02 to sustain. 120 gal fowlr. Thx


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Old 06-06-2016, 03:20 PM   #10
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Here is a link that describes this method through a product review/demonstration.
This site describes both yeast and citric acid based methods.


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