If you go with the Current Satellite LED+, I recommend getting two. I'm running one and a Marineland Double Bright (had it first) on my 55 gallon and I believe I'm in the medium light category. Plants are growing great with this combo, though I doubt I could get a carpeting plant to do much without CO2. And even then, it's doubtful in my opinion. I do have Staurogyne repens that is growing well, but it is 2-3" tall. My crypts are doing absolutely fantastic, however.