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posted by katy in Fish Tank Equipment
Glass CO2 Checker?

Been keeping a planted tank for a while now, doing DYI CO2 and was looking into a Glass CO2 checker...

They look cool and need some DIY way to get an idea of how much CO2 is in the water column...

Anyhoo, has anyone had any experience using these?

https://www.amazon.com/dp/B01MUDDMVP/

Hope it's ok I posted a link, thanks!

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