Hi, I am new to growing houseplants with artificial lighting, but I am finding it will be necessary in my home, with the window set-up, to use artificial (fluorescent tube) lighting to supplement natural light to grow my prayer plants over winter. Can anyone recommend a set-up for prayer plants, such as height of light above plants, number of hours to keep it on, etc.. I really like the plants, and want to give them the best conditions I can, so I need a little help. Thank you all in advance.