The Planted Tank Forum - View Single Post - DIY CO2 for beginner
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Old 01-11-2013, 02:47 PM   #28
plantedtankfan
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Quote:
Originally Posted by AnotherHobby View Post
You also don't want all that air space. Any air in the separator will have to be passed through your diffuser as "air" and not CO2. Fill it with water, leave air, but not a ton.
I am using a powerade 16 oz bottole as my diffuser. How far should I fill it up with water.
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