My Nano Cube grew Rotala Indica, Rotala Macrondra green and Stargrass pretty well. Of course I was adding CO 2 w/ two 2 litre bottles. I broke the tank down because I was using actinic lighting which was causing a major algae outbreak. I am going to change the lighting to 6400k. I was using the Vortex Reactor. I plan to drill a hole in the back of the hood to accomodate the cord for the pump and use only 1 2 litre bottle.