In my case, the micro bubbles have become a pain. Plus, getting that clear CO2 lining out of the tank will be nice. It is a $57 investment (total) if you ever want to buy online from NilocG. Not that bad of a price for someone to build it for you.
It is a Rex Griggs CO2 reactor. I am tired of the micro bubbles. It impedes the view at times. Concerning the flow, you are correct! It is vitally important in high light, high tech tanks (as you and Fresh know). In low tech, not as much, but it does have importance in all planted tanks that use pressurized CO2 and fertilization methods. I'll still have the nano powerhead churning, so I'll still get to the 10x magic mark.
I received the Threadleaf Java Fern and NL Java Fern today, as well as a nice Anubias nana. I tied down the Anubias and glued the ferns. The tanks looks much better. It looks more established and has added height. I'll do another water change on Sunday and post pics on Sunday night or Monday morning. I'll start doing two water changes a week to reduce nasty organics, as most of the plants are new and there will be some decay. After the filter is installed, the tank will be on cruise control and the tank rebuild will be complete (finally!). To avoid boredom, I'll be adding some more fish eventually.