Redish Purple stems

-Soil Grows-

What is your experience level? (first timer, novice, experienced...) First Time

Your Equipment:
1.) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)-
2.) Distance from tops? -
3.) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)-
4.) Is there a consistent fresh air supply?-
5.) Do you have an exhaust fan and a circulation fan?-

Your medium:
6.) Specific brand and type of soil, and anything you've added to it. Earthgrow Topsoil.
7.) Size of container.-

Your nutrients and water:
8.) Source of water. (tap or filtered) Tap
9.) Method of checking water ph. (ph pen, test strips, aquarium test kit...) working on getting a test kit
10) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...)
11) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. none
12) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)molasses ( just started 2 days ago. 1 Tbs/5 gal. of water)
13) Are your ph levels stable, or do they fluctuate? soil ph is stable 6.8
14) What is your ingoing water's ph? ...your runoff ph?
15) Do you foliar feed? If so, with what, how often, and at what time do you spray?

Your growroom:
16) Indoors or outdoors? outdoors
17) What size of closet, room or hut?
18) What are the temps and humidity levels while lights are on? ...With lights off?
19) Noticed any insects in the growroom?

Your strain:
20) What strain are you growing? (Indica dominate or Sativa dom?) Sativa
21) From seeds or clones? seeds


I am 18 days into flowering and every stim on my sativa is a redish purple. i have been told this could be good, and I've also herd this could be bad. I haven't been able to find anything about it on the site so i was hoping someone could help me. The leafs are also slowly turning yellow and dieing. but its only the fan leafs from bottom to top. someone please help. thanks