Agreed, looking good!
When I used to have a planted tank with CO2, I was advised to put the CO2 on a timer, which I did. A solenoid wasn't expensive, as I recall. I put it on the same timer as the lights. Pumping CO2 into the water at night wastes CO2, because the plants won't use it in the dark (at least not as much), and the fish will probably appreciate it too.