Agree with what gf225 has stated, i grew it very well in 2 different tanks , the first one, my 40 gallon, has 2.8WPG of PC lighting, the glosso grew very quickly and stayed compact in this setup, the other tank is a small 15 gallon with only 2WPG, in this setup the glosso also grew quickly but did not grow very compact, so i would say it wil grow well under different lighting conditions but the growth may not be as compact (plant can get leggy) as you would like until you have a decent amount of watts especially if you have a small tank. The problem in the end i had with this plant was that it grew too quickly, you would need to replant it every 6 weeks or so because it will grow over itself and the lower sections will die off, so it requires quite a bit of work to keep things looking good.