Can anyone here recommend a particular brand/type/style of bubble counter and/or diffuser for my first pressurized CO2 setup? I have an Aqua Medic regulator, but need some good advice on the rest of the components for my setup. I am considering the Aqua Medic bubble counter, but only because I do not know what is out there. So far, I have not found a particular diffuser (or diffusion system) that really catches my attention, either. Feature-wise, I would prefer something that is high-quality and as fool-proof as possible. If someone could point me in the right direction, that would be very helpful. Thanks!