What Co2

[arif_93]

is tetraoptimat co2 a gd cheap co2 source to use.
bcuz i need cheap co2 and tetraoptimat co2 is cheapest if people hav used it please giv me your reveiws and pics of it if possible

 

[zig]

No the cheapest is a DIY mix of water sugar and yeast, there is a pinned topic in this section of the forum.

 

[wally6346]

haven't used that but the nutrafin kits are really cheap and using DIY mix