# of Nutrafin co2 systems for a 29gal

[WaterBaby]

I just purchased 2 of these on a closeout. The directions say to use 1 system per 20gal. I have a 29gallon. I'd like to use the other one for my 10gal planted ADF tank.

Could I use 1 and get decent results? I have not installed it yet. I'm trying to read up on posts for co2 use, and I do not have a kH test kit yet (in reading many posts, kH readings as well as pH readings seem to be important).

Thanks!

 

[Rex Grigg]

Use the diffuser and your own 2l juice bottles. Most people need a minimum of 4l of mix to get decent CO2 levels on a 29 gallon tank.