The Planted Tank Forum - View Single Post - Working on a DIY Co2 drop checker using baby bottle
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post #3 of (permalink) Old 02-18-2013, 11:10 PM Thread Starter
Algae Grower
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I put it in a glass of water, it wasnt filled up. but yes its pretty bouyant. I shouldn't need it to be too deep to test the Co2 though? I can always add another suction cup if needed.
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