The MC can grow under low-tech conditions, just that it's growth rate will tend to be much slower than if there was Co2 injection. You'll just have to be more patient while waiting for it to grow out.
Since you are not planning to keep any livestock in the tank, maybe can consider doing a dry-start method (DSM), plant the MC in the soil but without filling up the aquarium with water. It'll be sort of like an indoor garden/terrarium style setup. Simply mist the plants and soil daily to keep them hydrated and provide 12-14 hours of good intensity light. The MC will get ample Co2 direct from the air and grow much faster, there will be no algae issues and no need to run a filter.
You can check out an example of the DSM technique in a thread i posted a while back:
http://www.aquaticquotient.com/forum...Method-Journal!
As for your LED lights, it's better to use 8,000K color temps for growing plants. Firstly, the plants can utilise more of those specific light spectrums to grow better (rather than growing algae) and secondly, the tank looks more realistic in color tone to suit a freshwater environment, rather than the strong bluish hue like in a marine tank.
Bookmarks