Co2 System?

[MisssMarie]

Where do I get one? How do I set it up? Is it hard to do? Never had one before, and I apparently need it for my tank

 

[mike455555]

it depends you can set up a DIY one with yeast or pressurized have a look at this http/www.fishforums.net/index.php?/forum/212-archived-parc-threads/
there are a few ways on there