Help with DIY CO2 - The Planted Tank Forum
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post #1 of 18 (permalink) Old 09-20-2011, 11:23 PM Thread Starter
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Help with DIY CO2

So. I am looking to set up a Yeast CO2 reactor in the next week or so. I have seen so many different setups and recipes. I know the setup I am going to do. So here are my questions.

1. Can I use an airstone as a diffuser?

2. Can I just run an airpump at night to counteract the CO2 if I don't turn off the CO2?

3. What is the best recipe for this endeavor?

Any and all help would be great.


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post #2 of 18 (permalink) Old 09-21-2011, 12:02 AM
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A typical airstone won't cut it. I'd order a diffuser from the dreaded eBay or find one from The Shrimp Lab or another sponsor of the forum. They're super-cheap.

You can definitely run an air pump or just increase surface agitation.

The recipe really depends on what you need to accomplish. I typically use (in a 2litre bottle) 2cups sugar and 1tsp champagne yeast. Usually lasts 5-6 weeks until it starts to slow down. But I've had that mix last as long as 7-8 weeks.
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post #3 of 18 (permalink) Old 09-21-2011, 12:04 AM
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Airstones tend to block up with DIY and also the bubbles are too big and just float straight to the surface and off gas.

Its not necessary to 'counter act' co2 at night. Many people, even those with high pressurized co2 levels, have it running 24/7. Some people swear its a must though.

I always struggled to get enough diy co2 without having to replace every 3-5 days which is a PITA (could of been my recipe or type of yeast?), an investment into a pressurized system is worth its weight on gold.

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post #4 of 18 (permalink) Old 09-21-2011, 01:27 AM Thread Starter
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Quote:
Originally Posted by somewhatshocked View Post
A typical airstone won't cut it. I'd order a diffuser from the dreaded eBay or find one from The Shrimp Lab or another sponsor of the forum. They're super-cheap.

You can definitely run an air pump or just increase surface agitation.

The recipe really depends on what you need to accomplish. I typically use (in a 2litre bottle) 2cups sugar and 1tsp champagne yeast. Usually lasts 5-6 weeks until it starts to slow down. But I've had that mix last as long as 7-8 weeks.
That is what I was looking for. I can get a diffuser and all that through my LFS, but I was wondering if I could go cheaper than that. Thanks man.

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Originally Posted by eser21 View Post
Airstones tend to block up with DIY and also the bubbles are too big and just float straight to the surface and off gas.

Its not necessary to 'counter act' co2 at night. Many people, even those with high pressurized co2 levels, have it running 24/7. Some people swear its a must though.

I always struggled to get enough diy co2 without having to replace every 3-5 days which is a PITA (could of been my recipe or type of yeast?), an investment into a pressurized system is worth its weight on gold.
That is going to be an investment down the road a little bit. I am going to set up the DIY so I can save for it. Not to mention, I am going to be doing it on 3 tanks. So, I will need at least 2 systems as I can have 2 of the small tanks on one bottle.


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post #5 of 18 (permalink) Old 09-21-2011, 01:32 AM
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You can get a package of two diffusers, usually, for $2-3 and they'll do a good job.
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post #6 of 18 (permalink) Old 09-21-2011, 01:34 AM Thread Starter
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You can get a package of two diffusers, usually, for $2-3 and they'll do a good job.
Where? Shrimp Lab or on E-Bay?


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post #7 of 18 (permalink) Old 09-21-2011, 05:56 AM
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A lot of people use chopsticks as well. Stick the end of one into the end of the piece of tubing that the CO2 is coming out of and cut it off. Lots of tiny bubbles. Balsa wood works as well. Neither will give you a really really fine mist, but both work better than airstones.
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post #8 of 18 (permalink) Old 09-21-2011, 02:51 PM
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Where? Shrimp Lab or on E-Bay?
Both. Or use Google/your preferred search engine to find a good deal.

Personally, I'd recommend using Shrimp Lab when they have the nano diffusers back in stock because Nikki is an active forum participant and supporter.
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post #9 of 18 (permalink) Old 09-21-2011, 02:57 PM Thread Starter
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Both. Or use Google/your preferred search engine to find a good deal.

Personally, I'd recommend using Shrimp Lab when they have the nano diffusers back in stock because Nikki is an active forum participant and supporter.
Got ya. I am gonna check there again in a few days.


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post #10 of 18 (permalink) Old 09-21-2011, 05:14 PM
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Here is what I did

Reactor / Mixture




Diffuser






One package of Rapid Release Yeast
Cup of sugar
Tablespoon of backing soda

Hot water to mixture - add sugar, stir until disolved ADD yeast and SHAKE.

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post #11 of 18 (permalink) Old 09-21-2011, 11:40 PM
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Quote:
Originally Posted by jasonpatterson View Post
A lot of people use chopsticks as well. Stick the end of one into the end of the piece of tubing that the CO2 is coming out of and cut it off. Lots of tiny bubbles. Balsa wood works as well. Neither will give you a really really fine mist, but both work better than airstones.
Oh, brilliant! It works! Thank you!

~June
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post #12 of 18 (permalink) Old 09-22-2011, 03:29 AM Thread Starter
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Here is what I did

One package of Rapid Release Yeast
Cup of sugar
Tablespoon of backing soda

Hot water to mixture - add sugar, stir until disolved ADD yeast and SHAKE.
How long does that usually last you?


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post #13 of 18 (permalink) Old 09-22-2011, 04:03 AM
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Is that a Hawaiian Punch container? Haha. Nice one.

Quote:
Originally Posted by JasonG75 View Post
Here is what I did

Reactor / Mixture

pic


Diffuser

pic

One package of Rapid Release Yeast
Cup of sugar
Tablespoon of backing soda

Hot water to mixture - add sugar, stir until disolved ADD yeast and SHAKE.


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post #14 of 18 (permalink) Old 09-22-2011, 02:13 PM
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How long does that usually last you?
5-8 days ... more than likely on the 7th day I would change 1 (of 2) of the units. While the other unit is going strong.

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Is that a Hawaiian Punch container? Haha. Nice one.
YEAP 1 gallon along with a Vit Water reactor. You can use SuperGlue Gel for the connection. Aquarium Sealant just didnt work very well for me.

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post #15 of 18 (permalink) Old 10-10-2011, 03:44 AM
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Originally Posted by JasonG75 View Post
5-8 days ... more than likely on the 7th day I would change 1 (of 2) of the units. While the other unit is going strong.



YEAP 1 gallon along with a Vit Water reactor. You can use SuperGlue Gel for the connection. Aquarium Sealant just didnt work very well for me.
Jason...where is your check valve in this setup? do you have one?
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