difuser

[hazic]

i have a glass spirala difuser and the boubles geting in very big how can i make them start smaller so they will end up not that big?
sorry about my poor english

[wf7850]

if u using pressurized CO2 tank, try using a needle valve.

if using DIY, tink not much u can do.....

[hazic]

i'm using a needle valve and its not diy its somthing proffesional

[chua]

sorry.

Me don't really understand the question.

[budak]

I find most cheaper diffusers are very inefficient. Unless you want to fork out cash for a Bioplast, ADA or other high quality brand, try using an internal reactor instead (from $15 onwards i think) - the type which you attach to your filter output. Gets the Co2 completely dissolved, no wastage.

[tawauboy]

doubt you can do anything to reduce the bubble size.
think it is inherent in glass spiral diffuser design.