08-16-2006, 04:40 PM
Join Date: Dec 2005
iTrader Positive Rating: 100%
Originally Posted by chiahead
I personally think this diffuser could work up to a 55 gallon. I dont see why you need a larger one anyways as the co2 will just come out faster when you push higher pressure through it.
I wondered the same thing a while back, and it occurred to me as I watched and compared two diffusers at work, one larger and one smaller.
As you increase the bubble count and pressure on the smaller one, the gas comes out in larger bubbles as the surface area of the disk is only so big. As the bubbles come out faster, the bubbles collide with each other forming one large bubble. With the bigger diffuser/disk you have more surface area to pump more bubbles and still retain the smaller desired "micro" type bubbles.
So it's to the advantage of any CO2 system to have a larger disk so that more micro bubbles can released. Only disadvantage of a large model is the size of the diffuser can be distracting if use in a smaller tank
In my opinion, the fancy ADA diffusers work and look just as good as any other glass difusser, and the glass difussers can produce the same type of bubbles from a limewood diffuser too, but lack the obvious glass component.