C02 Diffuser placement

[Cheesehead]

With a HOB filter where is the best place to put the diffuser? (I know dumb question)

 

[cichlid_king]

It doesnt really matter where you put the diffuser. Personally I put it on the other side but It doesnt make a difference. I also ran my co2 through and airstone with an airpump so I didnt have too much stuff crowding up my 55 that was moderately planted

 

[Cheesehead]

This is my diffusor: http://www.youtube.com/watch?v=liuXWQcJCcU

 

[cichlid_king]

I tried the diy co2 but I could never get the yeast correct to make co2. Never worked for me