I have some low-light plants under a 40W fluorescent bulb in a 5.5 gallon tank. However, the bulb is not a full spectrum. Considering plants get energy from the sun, and the sun is obviously full spectrum, are full spectrum bulbs necessary for the plants to do well?
I don't have full spectrum plants and my low light plants grow well. With that much lighting though, think about co2 and ferts since you will have an algae problem probably.