[Shay]

I seem to remember a thread somewhere about bubbles from two bottles crashing into each other if one hagen ladder was used for two 2 liter bottles. I have not been able to find that thread again.

Is this an issue if I use one ladder and put a tee at the top of the tubing entering the ladder to connect the two bottles? Or do I need a seperate diffuser for each bottle?

Thanks for the help once again.