As I understand it, if you can get a large mass of plants doing well in your aquarium and get them pearling, then you will be better off than you are now. From what I've read, a plant pearls when it is producing O2 so frequently that the water around it cannot absorb any more and the O2 just clumps up and finally drifts toward the surface to dissipate. This means your water is "super-saturated" with oxygen, and that is always a good thing. You can't do that even if you run 10 bubble curtains!
One thing to keep in mind is that plants also take in O2 and do not give it back off at night (any time there is no light). In a heavily stocked aquarium you need to understand that without a decent amount of surface turbulence (from air pumps, filters, etc) the fish can quickly run low on dissolved O2 in the water. You should try turning off any air pumps you currently have going and watch what happens to the fish. If they cannot handle it without an air pump, I'd be wary of going all night without one. I don't do this myself, but many people do: have a timer set to run an air pump during night hours and possibly even turn off any CO2 injection (if pressurized). This is one big reason you want to lightly stock a planted aquarium.....plants count toward O2 consumption during the night. (they consume O2 all the time, but don't reproduce it at night).
