half way into my second week of flower and i have started to notice redish fan leaf stems. not everywhere but on some. am growing using DWC and gen hydro nutes, flora series. there is only one plant that i mainlined to this big ass bush. its drinking about 1gal of fluids a day at this point and is in a 5gal res. any ideas and or comments would be great as this is my first serious hydro grow.