Currently I run dedicated reactors into every planted aquarium. I just set up a new rack of 6 aquariums ranging from 20g-85g they overflow into each other and then into a large sump that doubles as a goldfish pond and hydroponic garden. If I run a reactor into the outflow will the co2 dissipate before reaching the last aquarium? I'd imagine all the overflows will gas off too much and it would be less efficient to run a single reactor rather than dedicated lines into each aquarium. I have a bunch of diffusers and can run lines into each aquarium but I'm wondering which would be best effective? The way it's set up it will be a headache to break it down and fix it so I'd rather just do it the most effective to begin with. Thoughts?