Can I double the DIY CO2 recipe? - The Planted Tank Forum
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post #1 of 2 (permalink) Old 05-17-2020, 07:02 PM Thread Starter
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Can I double the DIY CO2 recipe?

I've been using a paintball sized co2 tank on my 75 gallon. It's undersized, but I had extra tanks and a nice regulator already so I used what I had.
I live in a pretty rural area and the only place to get CO2 refills is a Dick's Sporting Goods about 40 miles away. When this COVID stuff started, I ordered a DIY setup to have just in case I ran out of co2 since Dick's is closed. Now that's all I have. It's working fine but I go through the citric acid/baking soda recipe in just a few days. Can I double the recipe using the same 2L bottles?
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post #2 of 2 (permalink) Old 05-17-2020, 07:28 PM
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Can I double the DIY CO2 recipe?

I think doubling the recipe in the same bottles will just increase the output amount but not do much for longevity once you get to a certain point, because after there gets to be so much alcohol in the bottle the yeast will die even if there is plenty of sugar left. When I used to do diy, I would rarely ever get a full week out of any bottle no matter what I tried. I had two or three and would start them staggered so it wouldn’t all die at the same time. Cooler temperatures will slow it down, but also reduce output. On that size of a tank I would think you would want at least four bottles going.

Edit - just realized you are not using yeast. So disregard what I said about the yeast dying off. But I still think it will just increase output for the same amount of time, unless the bottles are pressurized and you have a regulator on them to keep in the extra co2.

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