First autoflower

Week 5 had been amazing just that this week we had 3 days of rain which was great for the plant. I gave her some Tea again except that this time I use the rain water I collected. Which was ph at 6.3 and the run of off was ph at 6.8 The plant is around 10 inches now and I am starting to notice some red/purple lines on the stems. The smell is weak but it is still a little early to judge. I would really like some feedback you guys.