You have to decide tank size, before lights. If you are looking for low maintenance and no CO2, don't go for the crazy light. I grow nice crypts, hormwort, pennywort, java fern, moss, and even a huge amazon sword on the regular ole flourescent hoods. I also have the marineland LED lights which I LOVE on my 20 highs. I recommend a 20 high as a good starting point. The 20 long just doesn't have enough height...but that is probably a personal prefernce.
The more light you put on there, the more out of balance everything becomes. Then algae will start, etc.
The more light you put on there, the more out of balance everything becomes. Then algae will start, etc.