Yeah those plants are way too stretched out. I use CFLs and my nodes are about 1 inches apart. I think 4-5 inches is too far away for CFLs, I keep mine about half an inch from touching the top. You can do this because CFLs put out virtually no heat. Also get some more on that plant and you might just want to think about scrapping that one and starting over, or taking a clone from it if you find out it's a female and start that with the right amount of light.