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Citric acid CO2 system

iDigit

Seedling
Joined
8 Nov 2016
Messages
16
Location
Switzerland
Hello,

I am in the process of setting up a Trigon 190 planted tank. This will be my first venture into a CO2 equipped tank. However, I want to use a DIY citric acid/baking soda mixture. I have found many recipes, many designs and tons of ideas ... but no information on how much citric acid / baking soda mix needed for x size tank.

2 soda bottles seems hardly sufficient for a 200 l tank ... or at least, not where I won't need to make frequent refills ....

So my question is the following : in order to do a refill once every 2 or 3 months, what quantities of citric acid baking soda would I need ?

Knowing the answer to this question will determine the size of canister I build for the mixture.

Thank you for any assistance
 
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