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Old 05-10-2010, 02:28 PM   #11
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IME, there won't be bubbling in the 2 liter bottles. I see some foaming at the top of the solution after I shake it, but normally, there aren't bubbles.

What mixture are you using to make your yeast solution? Small changes can make a big difference. I typically use 2 cups sugar and 1/8-/14 tsp yeast for a fresh batch. Add the sugar to the bottle, fill 80-90% of the way to the top with warm water and dissolve the sugar. Activate the yeast by stirring it around in a little warm water for a few minutes and pour it into the bottle. Shake to mix. This generally gets me through a month. Remember to fill the bottle nearly to the top with water. If you leave a lot of air, it's just more volume of CO2 that you need to produce to get the gas to the tank.

Also, the depth at which you place your diffuser makes a difference. I use pieces of bamboo skewers as diffusers at the moment and I originally had them at the bottom of the tank. The CO2 mixtures for my 29g wouldn't last very long before they'd stop bubbling. I raised the diffuser halfway in the tank, thereby reducing the gas pressure needed, and my mixtures last longer.
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Old 05-10-2010, 02:33 PM   #12
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I'll have to try that on my 20. I did add a teeny pinch of yeast to both bottles and I saw a few bubbles come out in my tank though, so at least I'm pretty sure its not a leak. I'm currently watching my betta trying to fight the occasional bubble that escapes the bell. XD
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Old 05-13-2010, 06:35 PM   #13
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It can take up to 24 hours until my CO2 get's going, try putting it in a colder or warmer place.
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Old 05-18-2010, 02:14 PM   #14
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you might try dissolving the powdered yeast in a small cup of warm water before putting it into the main bottle. My DIY has not been working lately. I bought some zip ties to strap down the tubes to the connectors really well.
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Old 05-18-2010, 03:16 PM   #15
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Quote:
Originally Posted by cabezon View Post
you might try dissolving the powdered yeast in a small cup of warm water before putting it into the main bottle. My DIY has not been working lately. I bought some zip ties to strap down the tubes to the connectors really well.
I actually had better luck the other way around, haha. I couldn't get anything going with the premixed yeast, but the moment I sprinkled a tiny pinch of dry it was going in about 30 minutes.
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