How much and what kind of light do you have on her? It could be as simple as not enough light, I run 30 plants under 2,000w of HPS, and that's pushing it by 5 or more plants too much...lol...cause ya wana figure about 100w a plant if your running CFLs...and 85 to 90w running HIDs...or so it worked for me and is therefore my opinion...