I tossed around the idea of pressurized CO2 but considering the estimated ten to fifteen times faster growth that CO2 injection bring's,, I did not fancy the idea of large weekly pruning to keep the plant's from going wild with growth, and possibly blocking light to younger plant's,to where they could not get a good start.
Many of those who run such tank's as far as I can see,are alway's pruning, and their aquascapes are seldom kept more than a few week's, month's before they tear it down and start another.
Nothing wrong with this if it suit's you,Bu tI'm into slower growth,,longer aquascape design,little to no pruning,and zero chance of gassing fishes.
Just sayin,,be careful what you wish for. If you have the time for the near constant pruning ,then CO2 injection,which allow's more light or moderate light, and also increases the demand for nutrient's..is excellent for growth of wide range of plant's.
judging from the growth of my low light ,NON co2 enhanced tank,, I conceded that I was not up to the extra work and billfold was not up to the extra expense.
Maybe some day soon I shall give the gas a go, but for now,,
The most important medication in your fish medicine cabinet is.. Clean water.