DIY co2 yeast question - The Planted Tank Forum

 
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post #1 of 5 (permalink) Old 02-24-2013, 02:07 AM Thread Starter
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DIY co2 yeast question

I just picked up everything I need for a DIY co2 setup for my 6.6 gallon tank.

I have 13 watts of light over java moss, java fern, small swords, frogbit, and a banana plant.

I'm wondering how much co2 will be produced by how much yeast. How much yeast should I use for the tank?

I know it's been gone over many times, but I'm just looking for a tested answer
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post #2 of 5 (permalink) Old 02-24-2013, 02:15 AM
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Quote:
Originally Posted by Kyguylal View Post
I just picked up everything I need for a DIY co2 setup for my 6.6 gallon tank.

I have 13 watts of light over java moss, java fern, small swords, frogbit, and a banana plant.

I'm wondering how much co2 will be produced by how much yeast. How much yeast should I use for the tank?

I know it's been gone over many times, but I'm just looking for a tested answer
I use 2x 710ml coke bottle on my 10gal. 1cup sugar, 1 cup water, 1/8 yeast on each bottle. last about a week
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post #3 of 5 (permalink) Old 02-24-2013, 02:17 AM
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The amount of yeast that is added initially will determine the rate at which the CO2 is produced (and consequently, how fast it dies out as well).

Most people use about 1/4 to 1/3 of a teaspoon of yeast, and this provides a good amount of CO2. A single 2 litre bottle should be sufficient for your aquarium.

Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
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post #4 of 5 (permalink) Old 02-24-2013, 02:19 AM Thread Starter
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So around 1/4 teaspoon of yeast, 2 cups of sugar and 2 cups of water should do?

I don't want to kill my Shrimps
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post #5 of 5 (permalink) Old 02-24-2013, 04:23 AM
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To gas out any fauna with DIY CO2, it generally takes a concerted effort to do so. It's an unlikely occurrence if you proportionally base your DIY setup on anything you've read about here.

Tweak it however you'd like - a standard single 2L concoction is fine for a 10g tank, and you won't kill off any fauna using that proportion, regardless of how you tweak it.

I understand that you're concerned about theory versus experience, but rest assured that you won't kill off any of your fish or shrimp unless you really, really try to do so.
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