Thank you Spanish Fly for the original info and pics - I'm learning a lot from this forum. Thank you Oriental Girl for a fabulous zoomable pic.

I'm very new to growing and am just building a grow cupboard. I am going to use hydroponics. I need to know how high the cupboard has to be but this is probably not the right place for this question. I will keep reading and see if I can find out......

What a great forum, thank you so much!