Hi foxfish, no need to apologize. I spent way too many hours pondering different strategies for getting co2 in to my tank as it is a tricky topic. I made a diagram to hopefully explain what I did a bit better. All the equipment in the diagram sits submerged in the final stage of the sump. My main idea was that between the atomizers turning the co2 into mist, and the reactors forcing the mist down against its natural buoyancy through a bio ball obstacle course, all the co2 would get diffused.