Review on Zerone Co2 Diffuser: Stainless Steel Carbon Dioxide Fish Tank Supplies for Efficient Aquarium Equipment by Popeye Knight

Not sure if I need to do anything special but right now I'm getting pretty big bubbles through the pane - not small bubbles like it should be. I just turned it on quickly to test it - I'll run it for a bit and see if it changes after increasing the pressure, but I'm not very hopeful. I also want this to come with a spare disk (okay.) There were no instructions in the package either (no rocket science but good to know I'm doing it right haha)