I just installed my first CO2 system on my 55 gallon freshwater tank. I have the regulator set to approx 1 bubble per second. I'm using a Red Sea Reactor 500. It seems that my CO2 bubbles are not being dispersed and circulated through the tank like other CO2 systems that I've seen. I have the Reactor set to the lowest setting per the instructions. I see some small bubbles rising from the Reactor and a "cloud" of bubbles at the water surface directly above the Reactor but other systems that I've seen have micro bubbles throughout the entire tank..... any thoughts?