The Planted Tank Forum - View Single Post - ADA Mini M: Iwagumi (56K)
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post #16 of (permalink) Old 12-21-2011, 03:49 AM Thread Starter
Algae Grower
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Join Date: Dec 2011
Location: Rochester, NY
Posts: 72
@donbeezy, it's a CO2 drop checker for monitoring CO2 level in my tank. I'm not sure how accurate it is, but it really helps me controlling the CO2 level.
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