Making A DIY C02 Unit and C02 Mixture Article

[khisanthax]

If I double up on all the ingredients, will it last twice as long or output twice as much co2?

[ishar]

sorry epond- I am unsure how to answer your questions .

khisanthax- well I don't think you could double up... 4 cups, to my knowledge, won't dissolve into what would be close to 1L of water. If you double the sugar than the yeast will likely die out before the sugar is used up, and if you double the yeast you will get more bubbles but for a shorter life span.

Having said that, I think if you used a bigger container you could double everything... but I don't think it would extend the life, only the CO2 production.

[alter40]

The other option that you have is to run two bottles if you really want to double it up you can attach two bottles to a T and run that to the tank but I don't know if that would be too much CO2 or not.

[epond83]

I think if you doubled everything but the yeast it would last longer. If I remember right the yeast multiply until they run out of oxygen, then the stop reproducing and create CO2 among other things.

The yeast slows production of CO2 when the alcohol percent reaches deadly levels, and they start to die off, so if you have the same amount of yeast but twice the amount of solution they should be able to live longer.

Now that I think about this I’m thinking about changing my one bottle system over to a two bottle system but with half the yeast in each, and have a tee connecting the two before the tank. And in effect make them last twice as long, if not close to it.

[khisanthax]

I have a three liter bottle so I wanted to maximize the space I have and not clutter around the tank. so using twice as much of everything would have been nice ... will too much co2 hurt the plants? or fish if I add them later?

[crimsontsavo]

Just posting here so I can keep track of this thread. Youve got questions ive been meaning to ask hehe.

[khisanthax]

=) always good to know more.

[Lotus]

Yes, if you have a tank larger than about 30 gallons, two bottles would be better. Some people use the gallon juice containers with success.

I would recommend that you stick to the quantities, more or less. They optimize the food/yeast ratios fairly well. Too much yeast uses up the sugar more quickly, but produces more CO2 in a shorter time. Too much sugar and not enough yeast will produce only a little CO2, but for a longer time.

You certainly don't want more volume than about 2/3 full for a bottle, or you risk having a problem with getting yeast into the tank.

[khisanthax]

I found a 3L bottle I'm going to use for a 10g connected to an airstone inside the tank. I'll stick with the formulae.

[pwrmacG4]

I made my co2 tonight.. easy. great thread!