And what about the light?
because where I'm plannig to build my wall doesn't have direct sunlight, there's just artificial light... what kind of lights do I need?
Thanks for answer!
I use compact fluorescent bulbs. They are NOT full spectrum. I think they may be "cool white". From "Ecology of the planted aquarium" by Diane Walstad she shows that "cool white" is almost as good as full spectrum for growing plants.