Co2 drop checker, nano or regular?

[keluar]

I am in the process of purchasing a co2 checker for a 125l tank. Does it matter which size drop checker to use?

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[allan angus]

no i think they all do same job size doesnt matter

 

[ian_m]

My best CO2 check has to be the JBL one, the one with white strip inside, as per Ceg's definitive drop checker article. CO2 Measurement Using A Drop Checker | UK Aquatic Plant Society

Easiest to read and if you drop it whilst cleaning/refilling etc it doesn't break unlike my other two glass drop checkers I have owned.

 

[iowphil]

I also use the jbl indicator,
Being a newbie it's very easy to use, and understand,
I'm hoping that I can have a play with my needle valve and note down the levels of co2 in the tank on the indicator to how many bubbles per minute


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[Frenchi]

Jbl here too ... I could never get the glass ones to change colour!

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