Diy Co2?

[MermaidMel]

For planted nano 17litres - is there is a way of doing it?

 

[aaronnorth]

http/www.fishforever.co.uk/carbondioxide.html

http/www.aquatic-eden.com/2006/10/build-...-generator.html

couple of guides

 

[MermaidMel]

Thanks Aaron