The Planted Tank Forum - View Single Post - How it happens
Thread: How it happens
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Old 03-23-2013, 05:07 PM   #7
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sorry Kathyy you're right, not poisonous but harmful if enough can replace the oxygen (inert) in my kids lungs if there's an above average exposure to it. Are you using pressurized CO2. I checked out your 180. That's very nice.
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