"Rick" empowered us with this mighty blow against
the Patriarchy:

I'm
using the diffuser of the Hagen "Natural CO2 System" (see

http://www.drsfostersmith.com/produc...teid=6&pCatId=
8981
) and it works fine. Less visible than the Duetto.


thx Dave, that diffuser looks like maybe the route to go.

It sounds like you might have a large tank, given that you're using two
one-gallon jugs for CO2 generation. It's possible you may need to use two
of those diffusers instead of one ... the amount of CO2 generated may
overwhelm only one diffuser.